build-mac/curl/curl.h
author buff <andreas@pep-project.org>
Fri, 15 Nov 2019 21:52:05 +0100
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changeset 4201 5fa6aa622efe
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     1 #ifndef __CURL_CURL_H
     2 #define __CURL_CURL_H
     3 /***************************************************************************
     4  *                                  _   _ ____  _
     5  *  Project                     ___| | | |  _ \| |
     6  *                             / __| | | | |_) | |
     7  *                            | (__| |_| |  _ <| |___
     8  *                             \___|\___/|_| \_\_____|
     9  *
    10  * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
    11  *
    12  * This software is licensed as described in the file COPYING, which
    13  * you should have received as part of this distribution. The terms
    14  * are also available at https://curl.haxx.se/docs/copyright.html.
    15  *
    16  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
    17  * copies of the Software, and permit persons to whom the Software is
    18  * furnished to do so, under the terms of the COPYING file.
    19  *
    20  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
    21  * KIND, either express or implied.
    22  *
    23  ***************************************************************************/
    24 
    25 /*
    26  * If you have libcurl problems, all docs and details are found here:
    27  *   https://curl.haxx.se/libcurl/
    28  *
    29  * curl-library mailing list subscription and unsubscription web interface:
    30  *   https://cool.haxx.se/mailman/listinfo/curl-library/
    31  */
    32 
    33 #include "curlver.h"         /* libcurl version defines   */
    34 #include "curlbuild.h"       /* libcurl build definitions */
    35 #include "curlrules.h"       /* libcurl rules enforcement */
    36 
    37 /*
    38  * Define WIN32 when build target is Win32 API
    39  */
    40 
    41 #if (defined(_WIN32) || defined(__WIN32__)) && \
    42      !defined(WIN32) && !defined(__SYMBIAN32__)
    43 #define WIN32
    44 #endif
    45 
    46 #include <stdio.h>
    47 #include <limits.h>
    48 
    49 #if defined(__FreeBSD__) && (__FreeBSD__ >= 2)
    50 /* Needed for __FreeBSD_version symbol definition */
    51 #include <osreldate.h>
    52 #endif
    53 
    54 /* The include stuff here below is mainly for time_t! */
    55 #include <sys/types.h>
    56 #include <time.h>
    57 
    58 #if defined(WIN32) && !defined(_WIN32_WCE) && !defined(__CYGWIN__)
    59 #if !(defined(_WINSOCKAPI_) || defined(_WINSOCK_H) || \
    60       defined(__LWIP_OPT_H__) || defined(LWIP_HDR_OPT_H))
    61 /* The check above prevents the winsock2 inclusion if winsock.h already was
    62    included, since they can't co-exist without problems */
    63 #include <winsock2.h>
    64 #include <ws2tcpip.h>
    65 #endif
    66 #endif
    67 
    68 /* HP-UX systems version 9, 10 and 11 lack sys/select.h and so does oldish
    69    libc5-based Linux systems. Only include it on systems that are known to
    70    require it! */
    71 #if defined(_AIX) || defined(__NOVELL_LIBC__) || defined(__NetBSD__) || \
    72     defined(__minix) || defined(__SYMBIAN32__) || defined(__INTEGRITY) || \
    73     defined(ANDROID) || defined(__ANDROID__) || defined(__OpenBSD__) || \
    74    (defined(__FreeBSD_version) && (__FreeBSD_version < 800000))
    75 #include <sys/select.h>
    76 #endif
    77 
    78 #if !defined(WIN32) && !defined(_WIN32_WCE)
    79 #include <sys/socket.h>
    80 #endif
    81 
    82 #if !defined(WIN32) && !defined(__WATCOMC__) && !defined(__VXWORKS__)
    83 #include <sys/time.h>
    84 #endif
    85 
    86 #ifdef __BEOS__
    87 #include <support/SupportDefs.h>
    88 #endif
    89 
    90 #ifdef  __cplusplus
    91 extern "C" {
    92 #endif
    93 
    94 typedef void CURL;
    95 
    96 /*
    97  * libcurl external API function linkage decorations.
    98  */
    99 
   100 #ifdef CURL_STATICLIB
   101 #  define CURL_EXTERN
   102 #elif defined(WIN32) || defined(_WIN32) || defined(__SYMBIAN32__)
   103 #  if defined(BUILDING_LIBCURL)
   104 #    define CURL_EXTERN  __declspec(dllexport)
   105 #  else
   106 #    define CURL_EXTERN  __declspec(dllimport)
   107 #  endif
   108 #elif defined(BUILDING_LIBCURL) && defined(CURL_HIDDEN_SYMBOLS)
   109 #  define CURL_EXTERN CURL_EXTERN_SYMBOL
   110 #else
   111 #  define CURL_EXTERN
   112 #endif
   113 
   114 #ifndef curl_socket_typedef
   115 /* socket typedef */
   116 #if defined(WIN32) && !defined(__LWIP_OPT_H__) && !defined(LWIP_HDR_OPT_H)
   117 typedef SOCKET curl_socket_t;
   118 #define CURL_SOCKET_BAD INVALID_SOCKET
   119 #else
   120 typedef int curl_socket_t;
   121 #define CURL_SOCKET_BAD -1
   122 #endif
   123 #define curl_socket_typedef
   124 #endif /* curl_socket_typedef */
   125 
   126 struct curl_httppost {
   127   struct curl_httppost *next;       /* next entry in the list */
   128   char *name;                       /* pointer to allocated name */
   129   long namelength;                  /* length of name length */
   130   char *contents;                   /* pointer to allocated data contents */
   131   long contentslength;              /* length of contents field, see also
   132                                        CURL_HTTPPOST_LARGE */
   133   char *buffer;                     /* pointer to allocated buffer contents */
   134   long bufferlength;                /* length of buffer field */
   135   char *contenttype;                /* Content-Type */
   136   struct curl_slist* contentheader; /* list of extra headers for this form */
   137   struct curl_httppost *more;       /* if one field name has more than one
   138                                        file, this link should link to following
   139                                        files */
   140   long flags;                       /* as defined below */
   141 
   142 /* specified content is a file name */
   143 #define CURL_HTTPPOST_FILENAME (1<<0)
   144 /* specified content is a file name */
   145 #define CURL_HTTPPOST_READFILE (1<<1)
   146 /* name is only stored pointer do not free in formfree */
   147 #define CURL_HTTPPOST_PTRNAME (1<<2)
   148 /* contents is only stored pointer do not free in formfree */
   149 #define CURL_HTTPPOST_PTRCONTENTS (1<<3)
   150 /* upload file from buffer */
   151 #define CURL_HTTPPOST_BUFFER (1<<4)
   152 /* upload file from pointer contents */
   153 #define CURL_HTTPPOST_PTRBUFFER (1<<5)
   154 /* upload file contents by using the regular read callback to get the data and
   155    pass the given pointer as custom pointer */
   156 #define CURL_HTTPPOST_CALLBACK (1<<6)
   157 /* use size in 'contentlen', added in 7.46.0 */
   158 #define CURL_HTTPPOST_LARGE (1<<7)
   159 
   160   char *showfilename;               /* The file name to show. If not set, the
   161                                        actual file name will be used (if this
   162                                        is a file part) */
   163   void *userp;                      /* custom pointer used for
   164                                        HTTPPOST_CALLBACK posts */
   165   curl_off_t contentlen;            /* alternative length of contents
   166                                        field. Used if CURL_HTTPPOST_LARGE is
   167                                        set. Added in 7.46.0 */
   168 };
   169 
   170 /* This is the CURLOPT_PROGRESSFUNCTION callback proto. It is now considered
   171    deprecated but was the only choice up until 7.31.0 */
   172 typedef int (*curl_progress_callback)(void *clientp,
   173                                       double dltotal,
   174                                       double dlnow,
   175                                       double ultotal,
   176                                       double ulnow);
   177 
   178 /* This is the CURLOPT_XFERINFOFUNCTION callback proto. It was introduced in
   179    7.32.0, it avoids floating point and provides more detailed information. */
   180 typedef int (*curl_xferinfo_callback)(void *clientp,
   181                                       curl_off_t dltotal,
   182                                       curl_off_t dlnow,
   183                                       curl_off_t ultotal,
   184                                       curl_off_t ulnow);
   185 
   186 #ifndef CURL_MAX_WRITE_SIZE
   187   /* Tests have proven that 20K is a very bad buffer size for uploads on
   188      Windows, while 16K for some odd reason performed a lot better.
   189      We do the ifndef check to allow this value to easier be changed at build
   190      time for those who feel adventurous. The practical minimum is about
   191      400 bytes since libcurl uses a buffer of this size as a scratch area
   192      (unrelated to network send operations). */
   193 #define CURL_MAX_WRITE_SIZE 16384
   194 #endif
   195 
   196 #ifndef CURL_MAX_HTTP_HEADER
   197 /* The only reason to have a max limit for this is to avoid the risk of a bad
   198    server feeding libcurl with a never-ending header that will cause reallocs
   199    infinitely */
   200 #define CURL_MAX_HTTP_HEADER (100*1024)
   201 #endif
   202 
   203 /* This is a magic return code for the write callback that, when returned,
   204    will signal libcurl to pause receiving on the current transfer. */
   205 #define CURL_WRITEFUNC_PAUSE 0x10000001
   206 
   207 typedef size_t (*curl_write_callback)(char *buffer,
   208                                       size_t size,
   209                                       size_t nitems,
   210                                       void *outstream);
   211 
   212 
   213 
   214 /* enumeration of file types */
   215 typedef enum {
   216   CURLFILETYPE_FILE = 0,
   217   CURLFILETYPE_DIRECTORY,
   218   CURLFILETYPE_SYMLINK,
   219   CURLFILETYPE_DEVICE_BLOCK,
   220   CURLFILETYPE_DEVICE_CHAR,
   221   CURLFILETYPE_NAMEDPIPE,
   222   CURLFILETYPE_SOCKET,
   223   CURLFILETYPE_DOOR, /* is possible only on Sun Solaris now */
   224 
   225   CURLFILETYPE_UNKNOWN /* should never occur */
   226 } curlfiletype;
   227 
   228 #define CURLFINFOFLAG_KNOWN_FILENAME    (1<<0)
   229 #define CURLFINFOFLAG_KNOWN_FILETYPE    (1<<1)
   230 #define CURLFINFOFLAG_KNOWN_TIME        (1<<2)
   231 #define CURLFINFOFLAG_KNOWN_PERM        (1<<3)
   232 #define CURLFINFOFLAG_KNOWN_UID         (1<<4)
   233 #define CURLFINFOFLAG_KNOWN_GID         (1<<5)
   234 #define CURLFINFOFLAG_KNOWN_SIZE        (1<<6)
   235 #define CURLFINFOFLAG_KNOWN_HLINKCOUNT  (1<<7)
   236 
   237 /* Content of this structure depends on information which is known and is
   238    achievable (e.g. by FTP LIST parsing). Please see the url_easy_setopt(3) man
   239    page for callbacks returning this structure -- some fields are mandatory,
   240    some others are optional. The FLAG field has special meaning. */
   241 struct curl_fileinfo {
   242   char *filename;
   243   curlfiletype filetype;
   244   time_t time;
   245   unsigned int perm;
   246   int uid;
   247   int gid;
   248   curl_off_t size;
   249   long int hardlinks;
   250 
   251   struct {
   252     /* If some of these fields is not NULL, it is a pointer to b_data. */
   253     char *time;
   254     char *perm;
   255     char *user;
   256     char *group;
   257     char *target; /* pointer to the target filename of a symlink */
   258   } strings;
   259 
   260   unsigned int flags;
   261 
   262   /* used internally */
   263   char * b_data;
   264   size_t b_size;
   265   size_t b_used;
   266 };
   267 
   268 /* return codes for CURLOPT_CHUNK_BGN_FUNCTION */
   269 #define CURL_CHUNK_BGN_FUNC_OK      0
   270 #define CURL_CHUNK_BGN_FUNC_FAIL    1 /* tell the lib to end the task */
   271 #define CURL_CHUNK_BGN_FUNC_SKIP    2 /* skip this chunk over */
   272 
   273 /* if splitting of data transfer is enabled, this callback is called before
   274    download of an individual chunk started. Note that parameter "remains" works
   275    only for FTP wildcard downloading (for now), otherwise is not used */
   276 typedef long (*curl_chunk_bgn_callback)(const void *transfer_info,
   277                                         void *ptr,
   278                                         int remains);
   279 
   280 /* return codes for CURLOPT_CHUNK_END_FUNCTION */
   281 #define CURL_CHUNK_END_FUNC_OK      0
   282 #define CURL_CHUNK_END_FUNC_FAIL    1 /* tell the lib to end the task */
   283 
   284 /* If splitting of data transfer is enabled this callback is called after
   285    download of an individual chunk finished.
   286    Note! After this callback was set then it have to be called FOR ALL chunks.
   287    Even if downloading of this chunk was skipped in CHUNK_BGN_FUNC.
   288    This is the reason why we don't need "transfer_info" parameter in this
   289    callback and we are not interested in "remains" parameter too. */
   290 typedef long (*curl_chunk_end_callback)(void *ptr);
   291 
   292 /* return codes for FNMATCHFUNCTION */
   293 #define CURL_FNMATCHFUNC_MATCH    0 /* string corresponds to the pattern */
   294 #define CURL_FNMATCHFUNC_NOMATCH  1 /* pattern doesn't match the string */
   295 #define CURL_FNMATCHFUNC_FAIL     2 /* an error occurred */
   296 
   297 /* callback type for wildcard downloading pattern matching. If the
   298    string matches the pattern, return CURL_FNMATCHFUNC_MATCH value, etc. */
   299 typedef int (*curl_fnmatch_callback)(void *ptr,
   300                                      const char *pattern,
   301                                      const char *string);
   302 
   303 /* These are the return codes for the seek callbacks */
   304 #define CURL_SEEKFUNC_OK       0
   305 #define CURL_SEEKFUNC_FAIL     1 /* fail the entire transfer */
   306 #define CURL_SEEKFUNC_CANTSEEK 2 /* tell libcurl seeking can't be done, so
   307                                     libcurl might try other means instead */
   308 typedef int (*curl_seek_callback)(void *instream,
   309                                   curl_off_t offset,
   310                                   int origin); /* 'whence' */
   311 
   312 /* This is a return code for the read callback that, when returned, will
   313    signal libcurl to immediately abort the current transfer. */
   314 #define CURL_READFUNC_ABORT 0x10000000
   315 /* This is a return code for the read callback that, when returned, will
   316    signal libcurl to pause sending data on the current transfer. */
   317 #define CURL_READFUNC_PAUSE 0x10000001
   318 
   319 typedef size_t (*curl_read_callback)(char *buffer,
   320                                       size_t size,
   321                                       size_t nitems,
   322                                       void *instream);
   323 
   324 typedef enum  {
   325   CURLSOCKTYPE_IPCXN,  /* socket created for a specific IP connection */
   326   CURLSOCKTYPE_ACCEPT, /* socket created by accept() call */
   327   CURLSOCKTYPE_LAST    /* never use */
   328 } curlsocktype;
   329 
   330 /* The return code from the sockopt_callback can signal information back
   331    to libcurl: */
   332 #define CURL_SOCKOPT_OK 0
   333 #define CURL_SOCKOPT_ERROR 1 /* causes libcurl to abort and return
   334                                 CURLE_ABORTED_BY_CALLBACK */
   335 #define CURL_SOCKOPT_ALREADY_CONNECTED 2
   336 
   337 typedef int (*curl_sockopt_callback)(void *clientp,
   338                                      curl_socket_t curlfd,
   339                                      curlsocktype purpose);
   340 
   341 struct curl_sockaddr {
   342   int family;
   343   int socktype;
   344   int protocol;
   345   unsigned int addrlen; /* addrlen was a socklen_t type before 7.18.0 but it
   346                            turned really ugly and painful on the systems that
   347                            lack this type */
   348   struct sockaddr addr;
   349 };
   350 
   351 typedef curl_socket_t
   352 (*curl_opensocket_callback)(void *clientp,
   353                             curlsocktype purpose,
   354                             struct curl_sockaddr *address);
   355 
   356 typedef int
   357 (*curl_closesocket_callback)(void *clientp, curl_socket_t item);
   358 
   359 typedef enum {
   360   CURLIOE_OK,            /* I/O operation successful */
   361   CURLIOE_UNKNOWNCMD,    /* command was unknown to callback */
   362   CURLIOE_FAILRESTART,   /* failed to restart the read */
   363   CURLIOE_LAST           /* never use */
   364 } curlioerr;
   365 
   366 typedef enum  {
   367   CURLIOCMD_NOP,         /* no operation */
   368   CURLIOCMD_RESTARTREAD, /* restart the read stream from start */
   369   CURLIOCMD_LAST         /* never use */
   370 } curliocmd;
   371 
   372 typedef curlioerr (*curl_ioctl_callback)(CURL *handle,
   373                                          int cmd,
   374                                          void *clientp);
   375 
   376 /*
   377  * The following typedef's are signatures of malloc, free, realloc, strdup and
   378  * calloc respectively.  Function pointers of these types can be passed to the
   379  * curl_global_init_mem() function to set user defined memory management
   380  * callback routines.
   381  */
   382 typedef void *(*curl_malloc_callback)(size_t size);
   383 typedef void (*curl_free_callback)(void *ptr);
   384 typedef void *(*curl_realloc_callback)(void *ptr, size_t size);
   385 typedef char *(*curl_strdup_callback)(const char *str);
   386 typedef void *(*curl_calloc_callback)(size_t nmemb, size_t size);
   387 
   388 /* the kind of data that is passed to information_callback*/
   389 typedef enum {
   390   CURLINFO_TEXT = 0,
   391   CURLINFO_HEADER_IN,    /* 1 */
   392   CURLINFO_HEADER_OUT,   /* 2 */
   393   CURLINFO_DATA_IN,      /* 3 */
   394   CURLINFO_DATA_OUT,     /* 4 */
   395   CURLINFO_SSL_DATA_IN,  /* 5 */
   396   CURLINFO_SSL_DATA_OUT, /* 6 */
   397   CURLINFO_END
   398 } curl_infotype;
   399 
   400 typedef int (*curl_debug_callback)
   401        (CURL *handle,      /* the handle/transfer this concerns */
   402         curl_infotype type, /* what kind of data */
   403         char *data,        /* points to the data */
   404         size_t size,       /* size of the data pointed to */
   405         void *userptr);    /* whatever the user please */
   406 
   407 /* All possible error codes from all sorts of curl functions. Future versions
   408    may return other values, stay prepared.
   409 
   410    Always add new return codes last. Never *EVER* remove any. The return
   411    codes must remain the same!
   412  */
   413 
   414 typedef enum {
   415   CURLE_OK = 0,
   416   CURLE_UNSUPPORTED_PROTOCOL,    /* 1 */
   417   CURLE_FAILED_INIT,             /* 2 */
   418   CURLE_URL_MALFORMAT,           /* 3 */
   419   CURLE_NOT_BUILT_IN,            /* 4 - [was obsoleted in August 2007 for
   420                                     7.17.0, reused in April 2011 for 7.21.5] */
   421   CURLE_COULDNT_RESOLVE_PROXY,   /* 5 */
   422   CURLE_COULDNT_RESOLVE_HOST,    /* 6 */
   423   CURLE_COULDNT_CONNECT,         /* 7 */
   424   CURLE_FTP_WEIRD_SERVER_REPLY,  /* 8 */
   425   CURLE_REMOTE_ACCESS_DENIED,    /* 9 a service was denied by the server
   426                                     due to lack of access - when login fails
   427                                     this is not returned. */
   428   CURLE_FTP_ACCEPT_FAILED,       /* 10 - [was obsoleted in April 2006 for
   429                                     7.15.4, reused in Dec 2011 for 7.24.0]*/
   430   CURLE_FTP_WEIRD_PASS_REPLY,    /* 11 */
   431   CURLE_FTP_ACCEPT_TIMEOUT,      /* 12 - timeout occurred accepting server
   432                                     [was obsoleted in August 2007 for 7.17.0,
   433                                     reused in Dec 2011 for 7.24.0]*/
   434   CURLE_FTP_WEIRD_PASV_REPLY,    /* 13 */
   435   CURLE_FTP_WEIRD_227_FORMAT,    /* 14 */
   436   CURLE_FTP_CANT_GET_HOST,       /* 15 */
   437   CURLE_HTTP2,                   /* 16 - A problem in the http2 framing layer.
   438                                     [was obsoleted in August 2007 for 7.17.0,
   439                                     reused in July 2014 for 7.38.0] */
   440   CURLE_FTP_COULDNT_SET_TYPE,    /* 17 */
   441   CURLE_PARTIAL_FILE,            /* 18 */
   442   CURLE_FTP_COULDNT_RETR_FILE,   /* 19 */
   443   CURLE_OBSOLETE20,              /* 20 - NOT USED */
   444   CURLE_QUOTE_ERROR,             /* 21 - quote command failure */
   445   CURLE_HTTP_RETURNED_ERROR,     /* 22 */
   446   CURLE_WRITE_ERROR,             /* 23 */
   447   CURLE_OBSOLETE24,              /* 24 - NOT USED */
   448   CURLE_UPLOAD_FAILED,           /* 25 - failed upload "command" */
   449   CURLE_READ_ERROR,              /* 26 - couldn't open/read from file */
   450   CURLE_OUT_OF_MEMORY,           /* 27 */
   451   /* Note: CURLE_OUT_OF_MEMORY may sometimes indicate a conversion error
   452            instead of a memory allocation error if CURL_DOES_CONVERSIONS
   453            is defined
   454   */
   455   CURLE_OPERATION_TIMEDOUT,      /* 28 - the timeout time was reached */
   456   CURLE_OBSOLETE29,              /* 29 - NOT USED */
   457   CURLE_FTP_PORT_FAILED,         /* 30 - FTP PORT operation failed */
   458   CURLE_FTP_COULDNT_USE_REST,    /* 31 - the REST command failed */
   459   CURLE_OBSOLETE32,              /* 32 - NOT USED */
   460   CURLE_RANGE_ERROR,             /* 33 - RANGE "command" didn't work */
   461   CURLE_HTTP_POST_ERROR,         /* 34 */
   462   CURLE_SSL_CONNECT_ERROR,       /* 35 - wrong when connecting with SSL */
   463   CURLE_BAD_DOWNLOAD_RESUME,     /* 36 - couldn't resume download */
   464   CURLE_FILE_COULDNT_READ_FILE,  /* 37 */
   465   CURLE_LDAP_CANNOT_BIND,        /* 38 */
   466   CURLE_LDAP_SEARCH_FAILED,      /* 39 */
   467   CURLE_OBSOLETE40,              /* 40 - NOT USED */
   468   CURLE_FUNCTION_NOT_FOUND,      /* 41 */
   469   CURLE_ABORTED_BY_CALLBACK,     /* 42 */
   470   CURLE_BAD_FUNCTION_ARGUMENT,   /* 43 */
   471   CURLE_OBSOLETE44,              /* 44 - NOT USED */
   472   CURLE_INTERFACE_FAILED,        /* 45 - CURLOPT_INTERFACE failed */
   473   CURLE_OBSOLETE46,              /* 46 - NOT USED */
   474   CURLE_TOO_MANY_REDIRECTS ,     /* 47 - catch endless re-direct loops */
   475   CURLE_UNKNOWN_OPTION,          /* 48 - User specified an unknown option */
   476   CURLE_TELNET_OPTION_SYNTAX ,   /* 49 - Malformed telnet option */
   477   CURLE_OBSOLETE50,              /* 50 - NOT USED */
   478   CURLE_PEER_FAILED_VERIFICATION, /* 51 - peer's certificate or fingerprint
   479                                      wasn't verified fine */
   480   CURLE_GOT_NOTHING,             /* 52 - when this is a specific error */
   481   CURLE_SSL_ENGINE_NOTFOUND,     /* 53 - SSL crypto engine not found */
   482   CURLE_SSL_ENGINE_SETFAILED,    /* 54 - can not set SSL crypto engine as
   483                                     default */
   484   CURLE_SEND_ERROR,              /* 55 - failed sending network data */
   485   CURLE_RECV_ERROR,              /* 56 - failure in receiving network data */
   486   CURLE_OBSOLETE57,              /* 57 - NOT IN USE */
   487   CURLE_SSL_CERTPROBLEM,         /* 58 - problem with the local certificate */
   488   CURLE_SSL_CIPHER,              /* 59 - couldn't use specified cipher */
   489   CURLE_SSL_CACERT,              /* 60 - problem with the CA cert (path?) */
   490   CURLE_BAD_CONTENT_ENCODING,    /* 61 - Unrecognized/bad encoding */
   491   CURLE_LDAP_INVALID_URL,        /* 62 - Invalid LDAP URL */
   492   CURLE_FILESIZE_EXCEEDED,       /* 63 - Maximum file size exceeded */
   493   CURLE_USE_SSL_FAILED,          /* 64 - Requested FTP SSL level failed */
   494   CURLE_SEND_FAIL_REWIND,        /* 65 - Sending the data requires a rewind
   495                                     that failed */
   496   CURLE_SSL_ENGINE_INITFAILED,   /* 66 - failed to initialise ENGINE */
   497   CURLE_LOGIN_DENIED,            /* 67 - user, password or similar was not
   498                                     accepted and we failed to login */
   499   CURLE_TFTP_NOTFOUND,           /* 68 - file not found on server */
   500   CURLE_TFTP_PERM,               /* 69 - permission problem on server */
   501   CURLE_REMOTE_DISK_FULL,        /* 70 - out of disk space on server */
   502   CURLE_TFTP_ILLEGAL,            /* 71 - Illegal TFTP operation */
   503   CURLE_TFTP_UNKNOWNID,          /* 72 - Unknown transfer ID */
   504   CURLE_REMOTE_FILE_EXISTS,      /* 73 - File already exists */
   505   CURLE_TFTP_NOSUCHUSER,         /* 74 - No such user */
   506   CURLE_CONV_FAILED,             /* 75 - conversion failed */
   507   CURLE_CONV_REQD,               /* 76 - caller must register conversion
   508                                     callbacks using curl_easy_setopt options
   509                                     CURLOPT_CONV_FROM_NETWORK_FUNCTION,
   510                                     CURLOPT_CONV_TO_NETWORK_FUNCTION, and
   511                                     CURLOPT_CONV_FROM_UTF8_FUNCTION */
   512   CURLE_SSL_CACERT_BADFILE,      /* 77 - could not load CACERT file, missing
   513                                     or wrong format */
   514   CURLE_REMOTE_FILE_NOT_FOUND,   /* 78 - remote file not found */
   515   CURLE_SSH,                     /* 79 - error from the SSH layer, somewhat
   516                                     generic so the error message will be of
   517                                     interest when this has happened */
   518 
   519   CURLE_SSL_SHUTDOWN_FAILED,     /* 80 - Failed to shut down the SSL
   520                                     connection */
   521   CURLE_AGAIN,                   /* 81 - socket is not ready for send/recv,
   522                                     wait till it's ready and try again (Added
   523                                     in 7.18.2) */
   524   CURLE_SSL_CRL_BADFILE,         /* 82 - could not load CRL file, missing or
   525                                     wrong format (Added in 7.19.0) */
   526   CURLE_SSL_ISSUER_ERROR,        /* 83 - Issuer check failed.  (Added in
   527                                     7.19.0) */
   528   CURLE_FTP_PRET_FAILED,         /* 84 - a PRET command failed */
   529   CURLE_RTSP_CSEQ_ERROR,         /* 85 - mismatch of RTSP CSeq numbers */
   530   CURLE_RTSP_SESSION_ERROR,      /* 86 - mismatch of RTSP Session Ids */
   531   CURLE_FTP_BAD_FILE_LIST,       /* 87 - unable to parse FTP file list */
   532   CURLE_CHUNK_FAILED,            /* 88 - chunk callback reported error */
   533   CURLE_NO_CONNECTION_AVAILABLE, /* 89 - No connection available, the
   534                                     session will be queued */
   535   CURLE_SSL_PINNEDPUBKEYNOTMATCH, /* 90 - specified pinned public key did not
   536                                      match */
   537   CURLE_SSL_INVALIDCERTSTATUS,   /* 91 - invalid certificate status */
   538   CURL_LAST /* never use! */
   539 } CURLcode;
   540 
   541 #ifndef CURL_NO_OLDIES /* define this to test if your app builds with all
   542                           the obsolete stuff removed! */
   543 
   544 /* Previously obsolete error code re-used in 7.38.0 */
   545 #define CURLE_OBSOLETE16 CURLE_HTTP2
   546 
   547 /* Previously obsolete error codes re-used in 7.24.0 */
   548 #define CURLE_OBSOLETE10 CURLE_FTP_ACCEPT_FAILED
   549 #define CURLE_OBSOLETE12 CURLE_FTP_ACCEPT_TIMEOUT
   550 
   551 /*  compatibility with older names */
   552 #define CURLOPT_ENCODING CURLOPT_ACCEPT_ENCODING
   553 
   554 /* The following were added in 7.21.5, April 2011 */
   555 #define CURLE_UNKNOWN_TELNET_OPTION CURLE_UNKNOWN_OPTION
   556 
   557 /* The following were added in 7.17.1 */
   558 /* These are scheduled to disappear by 2009 */
   559 #define CURLE_SSL_PEER_CERTIFICATE CURLE_PEER_FAILED_VERIFICATION
   560 
   561 /* The following were added in 7.17.0 */
   562 /* These are scheduled to disappear by 2009 */
   563 #define CURLE_OBSOLETE CURLE_OBSOLETE50 /* no one should be using this! */
   564 #define CURLE_BAD_PASSWORD_ENTERED CURLE_OBSOLETE46
   565 #define CURLE_BAD_CALLING_ORDER CURLE_OBSOLETE44
   566 #define CURLE_FTP_USER_PASSWORD_INCORRECT CURLE_OBSOLETE10
   567 #define CURLE_FTP_CANT_RECONNECT CURLE_OBSOLETE16
   568 #define CURLE_FTP_COULDNT_GET_SIZE CURLE_OBSOLETE32
   569 #define CURLE_FTP_COULDNT_SET_ASCII CURLE_OBSOLETE29
   570 #define CURLE_FTP_WEIRD_USER_REPLY CURLE_OBSOLETE12
   571 #define CURLE_FTP_WRITE_ERROR CURLE_OBSOLETE20
   572 #define CURLE_LIBRARY_NOT_FOUND CURLE_OBSOLETE40
   573 #define CURLE_MALFORMAT_USER CURLE_OBSOLETE24
   574 #define CURLE_SHARE_IN_USE CURLE_OBSOLETE57
   575 #define CURLE_URL_MALFORMAT_USER CURLE_NOT_BUILT_IN
   576 
   577 #define CURLE_FTP_ACCESS_DENIED CURLE_REMOTE_ACCESS_DENIED
   578 #define CURLE_FTP_COULDNT_SET_BINARY CURLE_FTP_COULDNT_SET_TYPE
   579 #define CURLE_FTP_QUOTE_ERROR CURLE_QUOTE_ERROR
   580 #define CURLE_TFTP_DISKFULL CURLE_REMOTE_DISK_FULL
   581 #define CURLE_TFTP_EXISTS CURLE_REMOTE_FILE_EXISTS
   582 #define CURLE_HTTP_RANGE_ERROR CURLE_RANGE_ERROR
   583 #define CURLE_FTP_SSL_FAILED CURLE_USE_SSL_FAILED
   584 
   585 /* The following were added earlier */
   586 
   587 #define CURLE_OPERATION_TIMEOUTED CURLE_OPERATION_TIMEDOUT
   588 
   589 #define CURLE_HTTP_NOT_FOUND CURLE_HTTP_RETURNED_ERROR
   590 #define CURLE_HTTP_PORT_FAILED CURLE_INTERFACE_FAILED
   591 #define CURLE_FTP_COULDNT_STOR_FILE CURLE_UPLOAD_FAILED
   592 
   593 #define CURLE_FTP_PARTIAL_FILE CURLE_PARTIAL_FILE
   594 #define CURLE_FTP_BAD_DOWNLOAD_RESUME CURLE_BAD_DOWNLOAD_RESUME
   595 
   596 /* This was the error code 50 in 7.7.3 and a few earlier versions, this
   597    is no longer used by libcurl but is instead #defined here only to not
   598    make programs break */
   599 #define CURLE_ALREADY_COMPLETE 99999
   600 
   601 /* Provide defines for really old option names */
   602 #define CURLOPT_FILE CURLOPT_WRITEDATA /* name changed in 7.9.7 */
   603 #define CURLOPT_INFILE CURLOPT_READDATA /* name changed in 7.9.7 */
   604 #define CURLOPT_WRITEHEADER CURLOPT_HEADERDATA
   605 
   606 /* Since long deprecated options with no code in the lib that does anything
   607    with them. */
   608 #define CURLOPT_WRITEINFO CURLOPT_OBSOLETE40
   609 #define CURLOPT_CLOSEPOLICY CURLOPT_OBSOLETE72
   610 
   611 #endif /*!CURL_NO_OLDIES*/
   612 
   613 /* This prototype applies to all conversion callbacks */
   614 typedef CURLcode (*curl_conv_callback)(char *buffer, size_t length);
   615 
   616 typedef CURLcode (*curl_ssl_ctx_callback)(CURL *curl,    /* easy handle */
   617                                           void *ssl_ctx, /* actually an
   618                                                             OpenSSL SSL_CTX */
   619                                           void *userptr);
   620 
   621 typedef enum {
   622   CURLPROXY_HTTP = 0,   /* added in 7.10, new in 7.19.4 default is to use
   623                            CONNECT HTTP/1.1 */
   624   CURLPROXY_HTTP_1_0 = 1,   /* added in 7.19.4, force to use CONNECT
   625                                HTTP/1.0  */
   626   CURLPROXY_SOCKS4 = 4, /* support added in 7.15.2, enum existed already
   627                            in 7.10 */
   628   CURLPROXY_SOCKS5 = 5, /* added in 7.10 */
   629   CURLPROXY_SOCKS4A = 6, /* added in 7.18.0 */
   630   CURLPROXY_SOCKS5_HOSTNAME = 7 /* Use the SOCKS5 protocol but pass along the
   631                                    host name rather than the IP address. added
   632                                    in 7.18.0 */
   633 } curl_proxytype;  /* this enum was added in 7.10 */
   634 
   635 /*
   636  * Bitmasks for CURLOPT_HTTPAUTH and CURLOPT_PROXYAUTH options:
   637  *
   638  * CURLAUTH_NONE         - No HTTP authentication
   639  * CURLAUTH_BASIC        - HTTP Basic authentication (default)
   640  * CURLAUTH_DIGEST       - HTTP Digest authentication
   641  * CURLAUTH_NEGOTIATE    - HTTP Negotiate (SPNEGO) authentication
   642  * CURLAUTH_GSSNEGOTIATE - Alias for CURLAUTH_NEGOTIATE (deprecated)
   643  * CURLAUTH_NTLM         - HTTP NTLM authentication
   644  * CURLAUTH_DIGEST_IE    - HTTP Digest authentication with IE flavour
   645  * CURLAUTH_NTLM_WB      - HTTP NTLM authentication delegated to winbind helper
   646  * CURLAUTH_ONLY         - Use together with a single other type to force no
   647  *                         authentication or just that single type
   648  * CURLAUTH_ANY          - All fine types set
   649  * CURLAUTH_ANYSAFE      - All fine types except Basic
   650  */
   651 
   652 #define CURLAUTH_NONE         ((unsigned long)0)
   653 #define CURLAUTH_BASIC        (((unsigned long)1)<<0)
   654 #define CURLAUTH_DIGEST       (((unsigned long)1)<<1)
   655 #define CURLAUTH_NEGOTIATE    (((unsigned long)1)<<2)
   656 /* Deprecated since the advent of CURLAUTH_NEGOTIATE */
   657 #define CURLAUTH_GSSNEGOTIATE CURLAUTH_NEGOTIATE
   658 #define CURLAUTH_NTLM         (((unsigned long)1)<<3)
   659 #define CURLAUTH_DIGEST_IE    (((unsigned long)1)<<4)
   660 #define CURLAUTH_NTLM_WB      (((unsigned long)1)<<5)
   661 #define CURLAUTH_ONLY         (((unsigned long)1)<<31)
   662 #define CURLAUTH_ANY          (~CURLAUTH_DIGEST_IE)
   663 #define CURLAUTH_ANYSAFE      (~(CURLAUTH_BASIC|CURLAUTH_DIGEST_IE))
   664 
   665 #define CURLSSH_AUTH_ANY       ~0     /* all types supported by the server */
   666 #define CURLSSH_AUTH_NONE      0      /* none allowed, silly but complete */
   667 #define CURLSSH_AUTH_PUBLICKEY (1<<0) /* public/private key files */
   668 #define CURLSSH_AUTH_PASSWORD  (1<<1) /* password */
   669 #define CURLSSH_AUTH_HOST      (1<<2) /* host key files */
   670 #define CURLSSH_AUTH_KEYBOARD  (1<<3) /* keyboard interactive */
   671 #define CURLSSH_AUTH_AGENT     (1<<4) /* agent (ssh-agent, pageant...) */
   672 #define CURLSSH_AUTH_DEFAULT CURLSSH_AUTH_ANY
   673 
   674 #define CURLGSSAPI_DELEGATION_NONE        0      /* no delegation (default) */
   675 #define CURLGSSAPI_DELEGATION_POLICY_FLAG (1<<0) /* if permitted by policy */
   676 #define CURLGSSAPI_DELEGATION_FLAG        (1<<1) /* delegate always */
   677 
   678 #define CURL_ERROR_SIZE 256
   679 
   680 enum curl_khtype {
   681   CURLKHTYPE_UNKNOWN,
   682   CURLKHTYPE_RSA1,
   683   CURLKHTYPE_RSA,
   684   CURLKHTYPE_DSS
   685 };
   686 
   687 struct curl_khkey {
   688   const char *key; /* points to a zero-terminated string encoded with base64
   689                       if len is zero, otherwise to the "raw" data */
   690   size_t len;
   691   enum curl_khtype keytype;
   692 };
   693 
   694 /* this is the set of return values expected from the curl_sshkeycallback
   695    callback */
   696 enum curl_khstat {
   697   CURLKHSTAT_FINE_ADD_TO_FILE,
   698   CURLKHSTAT_FINE,
   699   CURLKHSTAT_REJECT, /* reject the connection, return an error */
   700   CURLKHSTAT_DEFER,  /* do not accept it, but we can't answer right now so
   701                         this causes a CURLE_DEFER error but otherwise the
   702                         connection will be left intact etc */
   703   CURLKHSTAT_LAST    /* not for use, only a marker for last-in-list */
   704 };
   705 
   706 /* this is the set of status codes pass in to the callback */
   707 enum curl_khmatch {
   708   CURLKHMATCH_OK,       /* match */
   709   CURLKHMATCH_MISMATCH, /* host found, key mismatch! */
   710   CURLKHMATCH_MISSING,  /* no matching host/key found */
   711   CURLKHMATCH_LAST      /* not for use, only a marker for last-in-list */
   712 };
   713 
   714 typedef int
   715   (*curl_sshkeycallback) (CURL *easy,     /* easy handle */
   716                           const struct curl_khkey *knownkey, /* known */
   717                           const struct curl_khkey *foundkey, /* found */
   718                           enum curl_khmatch, /* libcurl's view on the keys */
   719                           void *clientp); /* custom pointer passed from app */
   720 
   721 /* parameter for the CURLOPT_USE_SSL option */
   722 typedef enum {
   723   CURLUSESSL_NONE,    /* do not attempt to use SSL */
   724   CURLUSESSL_TRY,     /* try using SSL, proceed anyway otherwise */
   725   CURLUSESSL_CONTROL, /* SSL for the control connection or fail */
   726   CURLUSESSL_ALL,     /* SSL for all communication or fail */
   727   CURLUSESSL_LAST     /* not an option, never use */
   728 } curl_usessl;
   729 
   730 /* Definition of bits for the CURLOPT_SSL_OPTIONS argument: */
   731 
   732 /* - ALLOW_BEAST tells libcurl to allow the BEAST SSL vulnerability in the
   733    name of improving interoperability with older servers. Some SSL libraries
   734    have introduced work-arounds for this flaw but those work-arounds sometimes
   735    make the SSL communication fail. To regain functionality with those broken
   736    servers, a user can this way allow the vulnerability back. */
   737 #define CURLSSLOPT_ALLOW_BEAST (1<<0)
   738 
   739 /* - NO_REVOKE tells libcurl to disable certificate revocation checks for those
   740    SSL backends where such behavior is present. */
   741 #define CURLSSLOPT_NO_REVOKE (1<<1)
   742 
   743 #ifndef CURL_NO_OLDIES /* define this to test if your app builds with all
   744                           the obsolete stuff removed! */
   745 
   746 /* Backwards compatibility with older names */
   747 /* These are scheduled to disappear by 2009 */
   748 
   749 #define CURLFTPSSL_NONE CURLUSESSL_NONE
   750 #define CURLFTPSSL_TRY CURLUSESSL_TRY
   751 #define CURLFTPSSL_CONTROL CURLUSESSL_CONTROL
   752 #define CURLFTPSSL_ALL CURLUSESSL_ALL
   753 #define CURLFTPSSL_LAST CURLUSESSL_LAST
   754 #define curl_ftpssl curl_usessl
   755 #endif /*!CURL_NO_OLDIES*/
   756 
   757 /* parameter for the CURLOPT_FTP_SSL_CCC option */
   758 typedef enum {
   759   CURLFTPSSL_CCC_NONE,    /* do not send CCC */
   760   CURLFTPSSL_CCC_PASSIVE, /* Let the server initiate the shutdown */
   761   CURLFTPSSL_CCC_ACTIVE,  /* Initiate the shutdown */
   762   CURLFTPSSL_CCC_LAST     /* not an option, never use */
   763 } curl_ftpccc;
   764 
   765 /* parameter for the CURLOPT_FTPSSLAUTH option */
   766 typedef enum {
   767   CURLFTPAUTH_DEFAULT, /* let libcurl decide */
   768   CURLFTPAUTH_SSL,     /* use "AUTH SSL" */
   769   CURLFTPAUTH_TLS,     /* use "AUTH TLS" */
   770   CURLFTPAUTH_LAST /* not an option, never use */
   771 } curl_ftpauth;
   772 
   773 /* parameter for the CURLOPT_FTP_CREATE_MISSING_DIRS option */
   774 typedef enum {
   775   CURLFTP_CREATE_DIR_NONE,  /* do NOT create missing dirs! */
   776   CURLFTP_CREATE_DIR,       /* (FTP/SFTP) if CWD fails, try MKD and then CWD
   777                                again if MKD succeeded, for SFTP this does
   778                                similar magic */
   779   CURLFTP_CREATE_DIR_RETRY, /* (FTP only) if CWD fails, try MKD and then CWD
   780                                again even if MKD failed! */
   781   CURLFTP_CREATE_DIR_LAST   /* not an option, never use */
   782 } curl_ftpcreatedir;
   783 
   784 /* parameter for the CURLOPT_FTP_FILEMETHOD option */
   785 typedef enum {
   786   CURLFTPMETHOD_DEFAULT,   /* let libcurl pick */
   787   CURLFTPMETHOD_MULTICWD,  /* single CWD operation for each path part */
   788   CURLFTPMETHOD_NOCWD,     /* no CWD at all */
   789   CURLFTPMETHOD_SINGLECWD, /* one CWD to full dir, then work on file */
   790   CURLFTPMETHOD_LAST       /* not an option, never use */
   791 } curl_ftpmethod;
   792 
   793 /* bitmask defines for CURLOPT_HEADEROPT */
   794 #define CURLHEADER_UNIFIED  0
   795 #define CURLHEADER_SEPARATE (1<<0)
   796 
   797 /* CURLPROTO_ defines are for the CURLOPT_*PROTOCOLS options */
   798 #define CURLPROTO_HTTP   (1<<0)
   799 #define CURLPROTO_HTTPS  (1<<1)
   800 #define CURLPROTO_FTP    (1<<2)
   801 #define CURLPROTO_FTPS   (1<<3)
   802 #define CURLPROTO_SCP    (1<<4)
   803 #define CURLPROTO_SFTP   (1<<5)
   804 #define CURLPROTO_TELNET (1<<6)
   805 #define CURLPROTO_LDAP   (1<<7)
   806 #define CURLPROTO_LDAPS  (1<<8)
   807 #define CURLPROTO_DICT   (1<<9)
   808 #define CURLPROTO_FILE   (1<<10)
   809 #define CURLPROTO_TFTP   (1<<11)
   810 #define CURLPROTO_IMAP   (1<<12)
   811 #define CURLPROTO_IMAPS  (1<<13)
   812 #define CURLPROTO_POP3   (1<<14)
   813 #define CURLPROTO_POP3S  (1<<15)
   814 #define CURLPROTO_SMTP   (1<<16)
   815 #define CURLPROTO_SMTPS  (1<<17)
   816 #define CURLPROTO_RTSP   (1<<18)
   817 #define CURLPROTO_RTMP   (1<<19)
   818 #define CURLPROTO_RTMPT  (1<<20)
   819 #define CURLPROTO_RTMPE  (1<<21)
   820 #define CURLPROTO_RTMPTE (1<<22)
   821 #define CURLPROTO_RTMPS  (1<<23)
   822 #define CURLPROTO_RTMPTS (1<<24)
   823 #define CURLPROTO_GOPHER (1<<25)
   824 #define CURLPROTO_SMB    (1<<26)
   825 #define CURLPROTO_SMBS   (1<<27)
   826 #define CURLPROTO_ALL    (~0) /* enable everything */
   827 
   828 /* long may be 32 or 64 bits, but we should never depend on anything else
   829    but 32 */
   830 #define CURLOPTTYPE_LONG          0
   831 #define CURLOPTTYPE_OBJECTPOINT   10000
   832 #define CURLOPTTYPE_STRINGPOINT   10000
   833 #define CURLOPTTYPE_FUNCTIONPOINT 20000
   834 #define CURLOPTTYPE_OFF_T         30000
   835 
   836 /* *STRINGPOINT is an alias for OBJECTPOINT to allow tools to extract the
   837    string options from the header file */
   838 
   839 /* name is uppercase CURLOPT_<name>,
   840    type is one of the defined CURLOPTTYPE_<type>
   841    number is unique identifier */
   842 #ifdef CINIT
   843 #undef CINIT
   844 #endif
   845 
   846 #ifdef CURL_ISOCPP
   847 #define CINIT(na,t,nu) CURLOPT_ ## na = CURLOPTTYPE_ ## t + nu
   848 #else
   849 /* The macro "##" is ISO C, we assume pre-ISO C doesn't support it. */
   850 #define LONG          CURLOPTTYPE_LONG
   851 #define OBJECTPOINT   CURLOPTTYPE_OBJECTPOINT
   852 #define STRINGPOINT   CURLOPTTYPE_OBJECTPOINT
   853 #define FUNCTIONPOINT CURLOPTTYPE_FUNCTIONPOINT
   854 #define OFF_T         CURLOPTTYPE_OFF_T
   855 #define CINIT(name,type,number) CURLOPT_/**/name = type + number
   856 #endif
   857 
   858 /*
   859  * This macro-mania below setups the CURLOPT_[what] enum, to be used with
   860  * curl_easy_setopt(). The first argument in the CINIT() macro is the [what]
   861  * word.
   862  */
   863 
   864 typedef enum {
   865   /* This is the FILE * or void * the regular output should be written to. */
   866   CINIT(WRITEDATA, OBJECTPOINT, 1),
   867 
   868   /* The full URL to get/put */
   869   CINIT(URL, STRINGPOINT, 2),
   870 
   871   /* Port number to connect to, if other than default. */
   872   CINIT(PORT, LONG, 3),
   873 
   874   /* Name of proxy to use. */
   875   CINIT(PROXY, STRINGPOINT, 4),
   876 
   877   /* "user:password;options" to use when fetching. */
   878   CINIT(USERPWD, STRINGPOINT, 5),
   879 
   880   /* "user:password" to use with proxy. */
   881   CINIT(PROXYUSERPWD, STRINGPOINT, 6),
   882 
   883   /* Range to get, specified as an ASCII string. */
   884   CINIT(RANGE, STRINGPOINT, 7),
   885 
   886   /* not used */
   887 
   888   /* Specified file stream to upload from (use as input): */
   889   CINIT(READDATA, OBJECTPOINT, 9),
   890 
   891   /* Buffer to receive error messages in, must be at least CURL_ERROR_SIZE
   892    * bytes big. If this is not used, error messages go to stderr instead: */
   893   CINIT(ERRORBUFFER, OBJECTPOINT, 10),
   894 
   895   /* Function that will be called to store the output (instead of fwrite). The
   896    * parameters will use fwrite() syntax, make sure to follow them. */
   897   CINIT(WRITEFUNCTION, FUNCTIONPOINT, 11),
   898 
   899   /* Function that will be called to read the input (instead of fread). The
   900    * parameters will use fread() syntax, make sure to follow them. */
   901   CINIT(READFUNCTION, FUNCTIONPOINT, 12),
   902 
   903   /* Time-out the read operation after this amount of seconds */
   904   CINIT(TIMEOUT, LONG, 13),
   905 
   906   /* If the CURLOPT_INFILE is used, this can be used to inform libcurl about
   907    * how large the file being sent really is. That allows better error
   908    * checking and better verifies that the upload was successful. -1 means
   909    * unknown size.
   910    *
   911    * For large file support, there is also a _LARGE version of the key
   912    * which takes an off_t type, allowing platforms with larger off_t
   913    * sizes to handle larger files.  See below for INFILESIZE_LARGE.
   914    */
   915   CINIT(INFILESIZE, LONG, 14),
   916 
   917   /* POST static input fields. */
   918   CINIT(POSTFIELDS, OBJECTPOINT, 15),
   919 
   920   /* Set the referrer page (needed by some CGIs) */
   921   CINIT(REFERER, STRINGPOINT, 16),
   922 
   923   /* Set the FTP PORT string (interface name, named or numerical IP address)
   924      Use i.e '-' to use default address. */
   925   CINIT(FTPPORT, STRINGPOINT, 17),
   926 
   927   /* Set the User-Agent string (examined by some CGIs) */
   928   CINIT(USERAGENT, STRINGPOINT, 18),
   929 
   930   /* If the download receives less than "low speed limit" bytes/second
   931    * during "low speed time" seconds, the operations is aborted.
   932    * You could i.e if you have a pretty high speed connection, abort if
   933    * it is less than 2000 bytes/sec during 20 seconds.
   934    */
   935 
   936   /* Set the "low speed limit" */
   937   CINIT(LOW_SPEED_LIMIT, LONG, 19),
   938 
   939   /* Set the "low speed time" */
   940   CINIT(LOW_SPEED_TIME, LONG, 20),
   941 
   942   /* Set the continuation offset.
   943    *
   944    * Note there is also a _LARGE version of this key which uses
   945    * off_t types, allowing for large file offsets on platforms which
   946    * use larger-than-32-bit off_t's.  Look below for RESUME_FROM_LARGE.
   947    */
   948   CINIT(RESUME_FROM, LONG, 21),
   949 
   950   /* Set cookie in request: */
   951   CINIT(COOKIE, STRINGPOINT, 22),
   952 
   953   /* This points to a linked list of headers, struct curl_slist kind. This
   954      list is also used for RTSP (in spite of its name) */
   955   CINIT(HTTPHEADER, OBJECTPOINT, 23),
   956 
   957   /* This points to a linked list of post entries, struct curl_httppost */
   958   CINIT(HTTPPOST, OBJECTPOINT, 24),
   959 
   960   /* name of the file keeping your private SSL-certificate */
   961   CINIT(SSLCERT, STRINGPOINT, 25),
   962 
   963   /* password for the SSL or SSH private key */
   964   CINIT(KEYPASSWD, STRINGPOINT, 26),
   965 
   966   /* send TYPE parameter? */
   967   CINIT(CRLF, LONG, 27),
   968 
   969   /* send linked-list of QUOTE commands */
   970   CINIT(QUOTE, OBJECTPOINT, 28),
   971 
   972   /* send FILE * or void * to store headers to, if you use a callback it
   973      is simply passed to the callback unmodified */
   974   CINIT(HEADERDATA, OBJECTPOINT, 29),
   975 
   976   /* point to a file to read the initial cookies from, also enables
   977      "cookie awareness" */
   978   CINIT(COOKIEFILE, STRINGPOINT, 31),
   979 
   980   /* What version to specifically try to use.
   981      See CURL_SSLVERSION defines below. */
   982   CINIT(SSLVERSION, LONG, 32),
   983 
   984   /* What kind of HTTP time condition to use, see defines */
   985   CINIT(TIMECONDITION, LONG, 33),
   986 
   987   /* Time to use with the above condition. Specified in number of seconds
   988      since 1 Jan 1970 */
   989   CINIT(TIMEVALUE, LONG, 34),
   990 
   991   /* 35 = OBSOLETE */
   992 
   993   /* Custom request, for customizing the get command like
   994      HTTP: DELETE, TRACE and others
   995      FTP: to use a different list command
   996      */
   997   CINIT(CUSTOMREQUEST, STRINGPOINT, 36),
   998 
   999   /* FILE handle to use instead of stderr */
  1000   CINIT(STDERR, OBJECTPOINT, 37),
  1001 
  1002   /* 38 is not used */
  1003 
  1004   /* send linked-list of post-transfer QUOTE commands */
  1005   CINIT(POSTQUOTE, OBJECTPOINT, 39),
  1006 
  1007   CINIT(OBSOLETE40, OBJECTPOINT, 40), /* OBSOLETE, do not use! */
  1008 
  1009   CINIT(VERBOSE, LONG, 41),      /* talk a lot */
  1010   CINIT(HEADER, LONG, 42),       /* throw the header out too */
  1011   CINIT(NOPROGRESS, LONG, 43),   /* shut off the progress meter */
  1012   CINIT(NOBODY, LONG, 44),       /* use HEAD to get http document */
  1013   CINIT(FAILONERROR, LONG, 45),  /* no output on http error codes >= 400 */
  1014   CINIT(UPLOAD, LONG, 46),       /* this is an upload */
  1015   CINIT(POST, LONG, 47),         /* HTTP POST method */
  1016   CINIT(DIRLISTONLY, LONG, 48),  /* bare names when listing directories */
  1017 
  1018   CINIT(APPEND, LONG, 50),       /* Append instead of overwrite on upload! */
  1019 
  1020   /* Specify whether to read the user+password from the .netrc or the URL.
  1021    * This must be one of the CURL_NETRC_* enums below. */
  1022   CINIT(NETRC, LONG, 51),
  1023 
  1024   CINIT(FOLLOWLOCATION, LONG, 52),  /* use Location: Luke! */
  1025 
  1026   CINIT(TRANSFERTEXT, LONG, 53), /* transfer data in text/ASCII format */
  1027   CINIT(PUT, LONG, 54),          /* HTTP PUT */
  1028 
  1029   /* 55 = OBSOLETE */
  1030 
  1031   /* DEPRECATED
  1032    * Function that will be called instead of the internal progress display
  1033    * function. This function should be defined as the curl_progress_callback
  1034    * prototype defines. */
  1035   CINIT(PROGRESSFUNCTION, FUNCTIONPOINT, 56),
  1036 
  1037   /* Data passed to the CURLOPT_PROGRESSFUNCTION and CURLOPT_XFERINFOFUNCTION
  1038      callbacks */
  1039   CINIT(PROGRESSDATA, OBJECTPOINT, 57),
  1040 #define CURLOPT_XFERINFODATA CURLOPT_PROGRESSDATA
  1041 
  1042   /* We want the referrer field set automatically when following locations */
  1043   CINIT(AUTOREFERER, LONG, 58),
  1044 
  1045   /* Port of the proxy, can be set in the proxy string as well with:
  1046      "[host]:[port]" */
  1047   CINIT(PROXYPORT, LONG, 59),
  1048 
  1049   /* size of the POST input data, if strlen() is not good to use */
  1050   CINIT(POSTFIELDSIZE, LONG, 60),
  1051 
  1052   /* tunnel non-http operations through a HTTP proxy */
  1053   CINIT(HTTPPROXYTUNNEL, LONG, 61),
  1054 
  1055   /* Set the interface string to use as outgoing network interface */
  1056   CINIT(INTERFACE, STRINGPOINT, 62),
  1057 
  1058   /* Set the krb4/5 security level, this also enables krb4/5 awareness.  This
  1059    * is a string, 'clear', 'safe', 'confidential' or 'private'.  If the string
  1060    * is set but doesn't match one of these, 'private' will be used.  */
  1061   CINIT(KRBLEVEL, STRINGPOINT, 63),
  1062 
  1063   /* Set if we should verify the peer in ssl handshake, set 1 to verify. */
  1064   CINIT(SSL_VERIFYPEER, LONG, 64),
  1065 
  1066   /* The CApath or CAfile used to validate the peer certificate
  1067      this option is used only if SSL_VERIFYPEER is true */
  1068   CINIT(CAINFO, STRINGPOINT, 65),
  1069 
  1070   /* 66 = OBSOLETE */
  1071   /* 67 = OBSOLETE */
  1072 
  1073   /* Maximum number of http redirects to follow */
  1074   CINIT(MAXREDIRS, LONG, 68),
  1075 
  1076   /* Pass a long set to 1 to get the date of the requested document (if
  1077      possible)! Pass a zero to shut it off. */
  1078   CINIT(FILETIME, LONG, 69),
  1079 
  1080   /* This points to a linked list of telnet options */
  1081   CINIT(TELNETOPTIONS, OBJECTPOINT, 70),
  1082 
  1083   /* Max amount of cached alive connections */
  1084   CINIT(MAXCONNECTS, LONG, 71),
  1085 
  1086   CINIT(OBSOLETE72, LONG, 72), /* OBSOLETE, do not use! */
  1087 
  1088   /* 73 = OBSOLETE */
  1089 
  1090   /* Set to explicitly use a new connection for the upcoming transfer.
  1091      Do not use this unless you're absolutely sure of this, as it makes the
  1092      operation slower and is less friendly for the network. */
  1093   CINIT(FRESH_CONNECT, LONG, 74),
  1094 
  1095   /* Set to explicitly forbid the upcoming transfer's connection to be re-used
  1096      when done. Do not use this unless you're absolutely sure of this, as it
  1097      makes the operation slower and is less friendly for the network. */
  1098   CINIT(FORBID_REUSE, LONG, 75),
  1099 
  1100   /* Set to a file name that contains random data for libcurl to use to
  1101      seed the random engine when doing SSL connects. */
  1102   CINIT(RANDOM_FILE, STRINGPOINT, 76),
  1103 
  1104   /* Set to the Entropy Gathering Daemon socket pathname */
  1105   CINIT(EGDSOCKET, STRINGPOINT, 77),
  1106 
  1107   /* Time-out connect operations after this amount of seconds, if connects are
  1108      OK within this time, then fine... This only aborts the connect phase. */
  1109   CINIT(CONNECTTIMEOUT, LONG, 78),
  1110 
  1111   /* Function that will be called to store headers (instead of fwrite). The
  1112    * parameters will use fwrite() syntax, make sure to follow them. */
  1113   CINIT(HEADERFUNCTION, FUNCTIONPOINT, 79),
  1114 
  1115   /* Set this to force the HTTP request to get back to GET. Only really usable
  1116      if POST, PUT or a custom request have been used first.
  1117    */
  1118   CINIT(HTTPGET, LONG, 80),
  1119 
  1120   /* Set if we should verify the Common name from the peer certificate in ssl
  1121    * handshake, set 1 to check existence, 2 to ensure that it matches the
  1122    * provided hostname. */
  1123   CINIT(SSL_VERIFYHOST, LONG, 81),
  1124 
  1125   /* Specify which file name to write all known cookies in after completed
  1126      operation. Set file name to "-" (dash) to make it go to stdout. */
  1127   CINIT(COOKIEJAR, STRINGPOINT, 82),
  1128 
  1129   /* Specify which SSL ciphers to use */
  1130   CINIT(SSL_CIPHER_LIST, STRINGPOINT, 83),
  1131 
  1132   /* Specify which HTTP version to use! This must be set to one of the
  1133      CURL_HTTP_VERSION* enums set below. */
  1134   CINIT(HTTP_VERSION, LONG, 84),
  1135 
  1136   /* Specifically switch on or off the FTP engine's use of the EPSV command. By
  1137      default, that one will always be attempted before the more traditional
  1138      PASV command. */
  1139   CINIT(FTP_USE_EPSV, LONG, 85),
  1140 
  1141   /* type of the file keeping your SSL-certificate ("DER", "PEM", "ENG") */
  1142   CINIT(SSLCERTTYPE, STRINGPOINT, 86),
  1143 
  1144   /* name of the file keeping your private SSL-key */
  1145   CINIT(SSLKEY, STRINGPOINT, 87),
  1146 
  1147   /* type of the file keeping your private SSL-key ("DER", "PEM", "ENG") */
  1148   CINIT(SSLKEYTYPE, STRINGPOINT, 88),
  1149 
  1150   /* crypto engine for the SSL-sub system */
  1151   CINIT(SSLENGINE, STRINGPOINT, 89),
  1152 
  1153   /* set the crypto engine for the SSL-sub system as default
  1154      the param has no meaning...
  1155    */
  1156   CINIT(SSLENGINE_DEFAULT, LONG, 90),
  1157 
  1158   /* Non-zero value means to use the global dns cache */
  1159   CINIT(DNS_USE_GLOBAL_CACHE, LONG, 91), /* DEPRECATED, do not use! */
  1160 
  1161   /* DNS cache timeout */
  1162   CINIT(DNS_CACHE_TIMEOUT, LONG, 92),
  1163 
  1164   /* send linked-list of pre-transfer QUOTE commands */
  1165   CINIT(PREQUOTE, OBJECTPOINT, 93),
  1166 
  1167   /* set the debug function */
  1168   CINIT(DEBUGFUNCTION, FUNCTIONPOINT, 94),
  1169 
  1170   /* set the data for the debug function */
  1171   CINIT(DEBUGDATA, OBJECTPOINT, 95),
  1172 
  1173   /* mark this as start of a cookie session */
  1174   CINIT(COOKIESESSION, LONG, 96),
  1175 
  1176   /* The CApath directory used to validate the peer certificate
  1177      this option is used only if SSL_VERIFYPEER is true */
  1178   CINIT(CAPATH, STRINGPOINT, 97),
  1179 
  1180   /* Instruct libcurl to use a smaller receive buffer */
  1181   CINIT(BUFFERSIZE, LONG, 98),
  1182 
  1183   /* Instruct libcurl to not use any signal/alarm handlers, even when using
  1184      timeouts. This option is useful for multi-threaded applications.
  1185      See libcurl-the-guide for more background information. */
  1186   CINIT(NOSIGNAL, LONG, 99),
  1187 
  1188   /* Provide a CURLShare for mutexing non-ts data */
  1189   CINIT(SHARE, OBJECTPOINT, 100),
  1190 
  1191   /* indicates type of proxy. accepted values are CURLPROXY_HTTP (default),
  1192      CURLPROXY_SOCKS4, CURLPROXY_SOCKS4A and CURLPROXY_SOCKS5. */
  1193   CINIT(PROXYTYPE, LONG, 101),
  1194 
  1195   /* Set the Accept-Encoding string. Use this to tell a server you would like
  1196      the response to be compressed. Before 7.21.6, this was known as
  1197      CURLOPT_ENCODING */
  1198   CINIT(ACCEPT_ENCODING, STRINGPOINT, 102),
  1199 
  1200   /* Set pointer to private data */
  1201   CINIT(PRIVATE, OBJECTPOINT, 103),
  1202 
  1203   /* Set aliases for HTTP 200 in the HTTP Response header */
  1204   CINIT(HTTP200ALIASES, OBJECTPOINT, 104),
  1205 
  1206   /* Continue to send authentication (user+password) when following locations,
  1207      even when hostname changed. This can potentially send off the name
  1208      and password to whatever host the server decides. */
  1209   CINIT(UNRESTRICTED_AUTH, LONG, 105),
  1210 
  1211   /* Specifically switch on or off the FTP engine's use of the EPRT command (
  1212      it also disables the LPRT attempt). By default, those ones will always be
  1213      attempted before the good old traditional PORT command. */
  1214   CINIT(FTP_USE_EPRT, LONG, 106),
  1215 
  1216   /* Set this to a bitmask value to enable the particular authentications
  1217      methods you like. Use this in combination with CURLOPT_USERPWD.
  1218      Note that setting multiple bits may cause extra network round-trips. */
  1219   CINIT(HTTPAUTH, LONG, 107),
  1220 
  1221   /* Set the ssl context callback function, currently only for OpenSSL ssl_ctx
  1222      in second argument. The function must be matching the
  1223      curl_ssl_ctx_callback proto. */
  1224   CINIT(SSL_CTX_FUNCTION, FUNCTIONPOINT, 108),
  1225 
  1226   /* Set the userdata for the ssl context callback function's third
  1227      argument */
  1228   CINIT(SSL_CTX_DATA, OBJECTPOINT, 109),
  1229 
  1230   /* FTP Option that causes missing dirs to be created on the remote server.
  1231      In 7.19.4 we introduced the convenience enums for this option using the
  1232      CURLFTP_CREATE_DIR prefix.
  1233   */
  1234   CINIT(FTP_CREATE_MISSING_DIRS, LONG, 110),
  1235 
  1236   /* Set this to a bitmask value to enable the particular authentications
  1237      methods you like. Use this in combination with CURLOPT_PROXYUSERPWD.
  1238      Note that setting multiple bits may cause extra network round-trips. */
  1239   CINIT(PROXYAUTH, LONG, 111),
  1240 
  1241   /* FTP option that changes the timeout, in seconds, associated with
  1242      getting a response.  This is different from transfer timeout time and
  1243      essentially places a demand on the FTP server to acknowledge commands
  1244      in a timely manner. */
  1245   CINIT(FTP_RESPONSE_TIMEOUT, LONG, 112),
  1246 #define CURLOPT_SERVER_RESPONSE_TIMEOUT CURLOPT_FTP_RESPONSE_TIMEOUT
  1247 
  1248   /* Set this option to one of the CURL_IPRESOLVE_* defines (see below) to
  1249      tell libcurl to resolve names to those IP versions only. This only has
  1250      affect on systems with support for more than one, i.e IPv4 _and_ IPv6. */
  1251   CINIT(IPRESOLVE, LONG, 113),
  1252 
  1253   /* Set this option to limit the size of a file that will be downloaded from
  1254      an HTTP or FTP server.
  1255 
  1256      Note there is also _LARGE version which adds large file support for
  1257      platforms which have larger off_t sizes.  See MAXFILESIZE_LARGE below. */
  1258   CINIT(MAXFILESIZE, LONG, 114),
  1259 
  1260   /* See the comment for INFILESIZE above, but in short, specifies
  1261    * the size of the file being uploaded.  -1 means unknown.
  1262    */
  1263   CINIT(INFILESIZE_LARGE, OFF_T, 115),
  1264 
  1265   /* Sets the continuation offset.  There is also a LONG version of this;
  1266    * look above for RESUME_FROM.
  1267    */
  1268   CINIT(RESUME_FROM_LARGE, OFF_T, 116),
  1269 
  1270   /* Sets the maximum size of data that will be downloaded from
  1271    * an HTTP or FTP server.  See MAXFILESIZE above for the LONG version.
  1272    */
  1273   CINIT(MAXFILESIZE_LARGE, OFF_T, 117),
  1274 
  1275   /* Set this option to the file name of your .netrc file you want libcurl
  1276      to parse (using the CURLOPT_NETRC option). If not set, libcurl will do
  1277      a poor attempt to find the user's home directory and check for a .netrc
  1278      file in there. */
  1279   CINIT(NETRC_FILE, STRINGPOINT, 118),
  1280 
  1281   /* Enable SSL/TLS for FTP, pick one of:
  1282      CURLUSESSL_TRY     - try using SSL, proceed anyway otherwise
  1283      CURLUSESSL_CONTROL - SSL for the control connection or fail
  1284      CURLUSESSL_ALL     - SSL for all communication or fail
  1285   */
  1286   CINIT(USE_SSL, LONG, 119),
  1287 
  1288   /* The _LARGE version of the standard POSTFIELDSIZE option */
  1289   CINIT(POSTFIELDSIZE_LARGE, OFF_T, 120),
  1290 
  1291   /* Enable/disable the TCP Nagle algorithm */
  1292   CINIT(TCP_NODELAY, LONG, 121),
  1293 
  1294   /* 122 OBSOLETE, used in 7.12.3. Gone in 7.13.0 */
  1295   /* 123 OBSOLETE. Gone in 7.16.0 */
  1296   /* 124 OBSOLETE, used in 7.12.3. Gone in 7.13.0 */
  1297   /* 125 OBSOLETE, used in 7.12.3. Gone in 7.13.0 */
  1298   /* 126 OBSOLETE, used in 7.12.3. Gone in 7.13.0 */
  1299   /* 127 OBSOLETE. Gone in 7.16.0 */
  1300   /* 128 OBSOLETE. Gone in 7.16.0 */
  1301 
  1302   /* When FTP over SSL/TLS is selected (with CURLOPT_USE_SSL), this option
  1303      can be used to change libcurl's default action which is to first try
  1304      "AUTH SSL" and then "AUTH TLS" in this order, and proceed when a OK
  1305      response has been received.
  1306 
  1307      Available parameters are:
  1308      CURLFTPAUTH_DEFAULT - let libcurl decide
  1309      CURLFTPAUTH_SSL     - try "AUTH SSL" first, then TLS
  1310      CURLFTPAUTH_TLS     - try "AUTH TLS" first, then SSL
  1311   */
  1312   CINIT(FTPSSLAUTH, LONG, 129),
  1313 
  1314   CINIT(IOCTLFUNCTION, FUNCTIONPOINT, 130),
  1315   CINIT(IOCTLDATA, OBJECTPOINT, 131),
  1316 
  1317   /* 132 OBSOLETE. Gone in 7.16.0 */
  1318   /* 133 OBSOLETE. Gone in 7.16.0 */
  1319 
  1320   /* zero terminated string for pass on to the FTP server when asked for
  1321      "account" info */
  1322   CINIT(FTP_ACCOUNT, STRINGPOINT, 134),
  1323 
  1324   /* feed cookie into cookie engine */
  1325   CINIT(COOKIELIST, STRINGPOINT, 135),
  1326 
  1327   /* ignore Content-Length */
  1328   CINIT(IGNORE_CONTENT_LENGTH, LONG, 136),
  1329 
  1330   /* Set to non-zero to skip the IP address received in a 227 PASV FTP server
  1331      response. Typically used for FTP-SSL purposes but is not restricted to
  1332      that. libcurl will then instead use the same IP address it used for the
  1333      control connection. */
  1334   CINIT(FTP_SKIP_PASV_IP, LONG, 137),
  1335 
  1336   /* Select "file method" to use when doing FTP, see the curl_ftpmethod
  1337      above. */
  1338   CINIT(FTP_FILEMETHOD, LONG, 138),
  1339 
  1340   /* Local port number to bind the socket to */
  1341   CINIT(LOCALPORT, LONG, 139),
  1342 
  1343   /* Number of ports to try, including the first one set with LOCALPORT.
  1344      Thus, setting it to 1 will make no additional attempts but the first.
  1345   */
  1346   CINIT(LOCALPORTRANGE, LONG, 140),
  1347 
  1348   /* no transfer, set up connection and let application use the socket by
  1349      extracting it with CURLINFO_LASTSOCKET */
  1350   CINIT(CONNECT_ONLY, LONG, 141),
  1351 
  1352   /* Function that will be called to convert from the
  1353      network encoding (instead of using the iconv calls in libcurl) */
  1354   CINIT(CONV_FROM_NETWORK_FUNCTION, FUNCTIONPOINT, 142),
  1355 
  1356   /* Function that will be called to convert to the
  1357      network encoding (instead of using the iconv calls in libcurl) */
  1358   CINIT(CONV_TO_NETWORK_FUNCTION, FUNCTIONPOINT, 143),
  1359 
  1360   /* Function that will be called to convert from UTF8
  1361      (instead of using the iconv calls in libcurl)
  1362      Note that this is used only for SSL certificate processing */
  1363   CINIT(CONV_FROM_UTF8_FUNCTION, FUNCTIONPOINT, 144),
  1364 
  1365   /* if the connection proceeds too quickly then need to slow it down */
  1366   /* limit-rate: maximum number of bytes per second to send or receive */
  1367   CINIT(MAX_SEND_SPEED_LARGE, OFF_T, 145),
  1368   CINIT(MAX_RECV_SPEED_LARGE, OFF_T, 146),
  1369 
  1370   /* Pointer to command string to send if USER/PASS fails. */
  1371   CINIT(FTP_ALTERNATIVE_TO_USER, STRINGPOINT, 147),
  1372 
  1373   /* callback function for setting socket options */
  1374   CINIT(SOCKOPTFUNCTION, FUNCTIONPOINT, 148),
  1375   CINIT(SOCKOPTDATA, OBJECTPOINT, 149),
  1376 
  1377   /* set to 0 to disable session ID re-use for this transfer, default is
  1378      enabled (== 1) */
  1379   CINIT(SSL_SESSIONID_CACHE, LONG, 150),
  1380 
  1381   /* allowed SSH authentication methods */
  1382   CINIT(SSH_AUTH_TYPES, LONG, 151),
  1383 
  1384   /* Used by scp/sftp to do public/private key authentication */
  1385   CINIT(SSH_PUBLIC_KEYFILE, STRINGPOINT, 152),
  1386   CINIT(SSH_PRIVATE_KEYFILE, STRINGPOINT, 153),
  1387 
  1388   /* Send CCC (Clear Command Channel) after authentication */
  1389   CINIT(FTP_SSL_CCC, LONG, 154),
  1390 
  1391   /* Same as TIMEOUT and CONNECTTIMEOUT, but with ms resolution */
  1392   CINIT(TIMEOUT_MS, LONG, 155),
  1393   CINIT(CONNECTTIMEOUT_MS, LONG, 156),
  1394 
  1395   /* set to zero to disable the libcurl's decoding and thus pass the raw body
  1396      data to the application even when it is encoded/compressed */
  1397   CINIT(HTTP_TRANSFER_DECODING, LONG, 157),
  1398   CINIT(HTTP_CONTENT_DECODING, LONG, 158),
  1399 
  1400   /* Permission used when creating new files and directories on the remote
  1401      server for protocols that support it, SFTP/SCP/FILE */
  1402   CINIT(NEW_FILE_PERMS, LONG, 159),
  1403   CINIT(NEW_DIRECTORY_PERMS, LONG, 160),
  1404 
  1405   /* Set the behaviour of POST when redirecting. Values must be set to one
  1406      of CURL_REDIR* defines below. This used to be called CURLOPT_POST301 */
  1407   CINIT(POSTREDIR, LONG, 161),
  1408 
  1409   /* used by scp/sftp to verify the host's public key */
  1410   CINIT(SSH_HOST_PUBLIC_KEY_MD5, STRINGPOINT, 162),
  1411 
  1412   /* Callback function for opening socket (instead of socket(2)). Optionally,
  1413      callback is able change the address or refuse to connect returning
  1414      CURL_SOCKET_BAD.  The callback should have type
  1415      curl_opensocket_callback */
  1416   CINIT(OPENSOCKETFUNCTION, FUNCTIONPOINT, 163),
  1417   CINIT(OPENSOCKETDATA, OBJECTPOINT, 164),
  1418 
  1419   /* POST volatile input fields. */
  1420   CINIT(COPYPOSTFIELDS, OBJECTPOINT, 165),
  1421 
  1422   /* set transfer mode (;type=<a|i>) when doing FTP via an HTTP proxy */
  1423   CINIT(PROXY_TRANSFER_MODE, LONG, 166),
  1424 
  1425   /* Callback function for seeking in the input stream */
  1426   CINIT(SEEKFUNCTION, FUNCTIONPOINT, 167),
  1427   CINIT(SEEKDATA, OBJECTPOINT, 168),
  1428 
  1429   /* CRL file */
  1430   CINIT(CRLFILE, STRINGPOINT, 169),
  1431 
  1432   /* Issuer certificate */
  1433   CINIT(ISSUERCERT, STRINGPOINT, 170),
  1434 
  1435   /* (IPv6) Address scope */
  1436   CINIT(ADDRESS_SCOPE, LONG, 171),
  1437 
  1438   /* Collect certificate chain info and allow it to get retrievable with
  1439      CURLINFO_CERTINFO after the transfer is complete. */
  1440   CINIT(CERTINFO, LONG, 172),
  1441 
  1442   /* "name" and "pwd" to use when fetching. */
  1443   CINIT(USERNAME, STRINGPOINT, 173),
  1444   CINIT(PASSWORD, STRINGPOINT, 174),
  1445 
  1446     /* "name" and "pwd" to use with Proxy when fetching. */
  1447   CINIT(PROXYUSERNAME, STRINGPOINT, 175),
  1448   CINIT(PROXYPASSWORD, STRINGPOINT, 176),
  1449 
  1450   /* Comma separated list of hostnames defining no-proxy zones. These should
  1451      match both hostnames directly, and hostnames within a domain. For
  1452      example, local.com will match local.com and www.local.com, but NOT
  1453      notlocal.com or www.notlocal.com. For compatibility with other
  1454      implementations of this, .local.com will be considered to be the same as
  1455      local.com. A single * is the only valid wildcard, and effectively
  1456      disables the use of proxy. */
  1457   CINIT(NOPROXY, STRINGPOINT, 177),
  1458 
  1459   /* block size for TFTP transfers */
  1460   CINIT(TFTP_BLKSIZE, LONG, 178),
  1461 
  1462   /* Socks Service */
  1463   CINIT(SOCKS5_GSSAPI_SERVICE, STRINGPOINT, 179),
  1464 
  1465   /* Socks Service */
  1466   CINIT(SOCKS5_GSSAPI_NEC, LONG, 180),
  1467 
  1468   /* set the bitmask for the protocols that are allowed to be used for the
  1469      transfer, which thus helps the app which takes URLs from users or other
  1470      external inputs and want to restrict what protocol(s) to deal
  1471      with. Defaults to CURLPROTO_ALL. */
  1472   CINIT(PROTOCOLS, LONG, 181),
  1473 
  1474   /* set the bitmask for the protocols that libcurl is allowed to follow to,
  1475      as a subset of the CURLOPT_PROTOCOLS ones. That means the protocol needs
  1476      to be set in both bitmasks to be allowed to get redirected to. Defaults
  1477      to all protocols except FILE and SCP. */
  1478   CINIT(REDIR_PROTOCOLS, LONG, 182),
  1479 
  1480   /* set the SSH knownhost file name to use */
  1481   CINIT(SSH_KNOWNHOSTS, STRINGPOINT, 183),
  1482 
  1483   /* set the SSH host key callback, must point to a curl_sshkeycallback
  1484      function */
  1485   CINIT(SSH_KEYFUNCTION, FUNCTIONPOINT, 184),
  1486 
  1487   /* set the SSH host key callback custom pointer */
  1488   CINIT(SSH_KEYDATA, OBJECTPOINT, 185),
  1489 
  1490   /* set the SMTP mail originator */
  1491   CINIT(MAIL_FROM, STRINGPOINT, 186),
  1492 
  1493   /* set the list of SMTP mail receiver(s) */
  1494   CINIT(MAIL_RCPT, OBJECTPOINT, 187),
  1495 
  1496   /* FTP: send PRET before PASV */
  1497   CINIT(FTP_USE_PRET, LONG, 188),
  1498 
  1499   /* RTSP request method (OPTIONS, SETUP, PLAY, etc...) */
  1500   CINIT(RTSP_REQUEST, LONG, 189),
  1501 
  1502   /* The RTSP session identifier */
  1503   CINIT(RTSP_SESSION_ID, STRINGPOINT, 190),
  1504 
  1505   /* The RTSP stream URI */
  1506   CINIT(RTSP_STREAM_URI, STRINGPOINT, 191),
  1507 
  1508   /* The Transport: header to use in RTSP requests */
  1509   CINIT(RTSP_TRANSPORT, STRINGPOINT, 192),
  1510 
  1511   /* Manually initialize the client RTSP CSeq for this handle */
  1512   CINIT(RTSP_CLIENT_CSEQ, LONG, 193),
  1513 
  1514   /* Manually initialize the server RTSP CSeq for this handle */
  1515   CINIT(RTSP_SERVER_CSEQ, LONG, 194),
  1516 
  1517   /* The stream to pass to INTERLEAVEFUNCTION. */
  1518   CINIT(INTERLEAVEDATA, OBJECTPOINT, 195),
  1519 
  1520   /* Let the application define a custom write method for RTP data */
  1521   CINIT(INTERLEAVEFUNCTION, FUNCTIONPOINT, 196),
  1522 
  1523   /* Turn on wildcard matching */
  1524   CINIT(WILDCARDMATCH, LONG, 197),
  1525 
  1526   /* Directory matching callback called before downloading of an
  1527      individual file (chunk) started */
  1528   CINIT(CHUNK_BGN_FUNCTION, FUNCTIONPOINT, 198),
  1529 
  1530   /* Directory matching callback called after the file (chunk)
  1531      was downloaded, or skipped */
  1532   CINIT(CHUNK_END_FUNCTION, FUNCTIONPOINT, 199),
  1533 
  1534   /* Change match (fnmatch-like) callback for wildcard matching */
  1535   CINIT(FNMATCH_FUNCTION, FUNCTIONPOINT, 200),
  1536 
  1537   /* Let the application define custom chunk data pointer */
  1538   CINIT(CHUNK_DATA, OBJECTPOINT, 201),
  1539 
  1540   /* FNMATCH_FUNCTION user pointer */
  1541   CINIT(FNMATCH_DATA, OBJECTPOINT, 202),
  1542 
  1543   /* send linked-list of name:port:address sets */
  1544   CINIT(RESOLVE, OBJECTPOINT, 203),
  1545 
  1546   /* Set a username for authenticated TLS */
  1547   CINIT(TLSAUTH_USERNAME, STRINGPOINT, 204),
  1548 
  1549   /* Set a password for authenticated TLS */
  1550   CINIT(TLSAUTH_PASSWORD, STRINGPOINT, 205),
  1551 
  1552   /* Set authentication type for authenticated TLS */
  1553   CINIT(TLSAUTH_TYPE, STRINGPOINT, 206),
  1554 
  1555   /* Set to 1 to enable the "TE:" header in HTTP requests to ask for
  1556      compressed transfer-encoded responses. Set to 0 to disable the use of TE:
  1557      in outgoing requests. The current default is 0, but it might change in a
  1558      future libcurl release.
  1559 
  1560      libcurl will ask for the compressed methods it knows of, and if that
  1561      isn't any, it will not ask for transfer-encoding at all even if this
  1562      option is set to 1.
  1563 
  1564   */
  1565   CINIT(TRANSFER_ENCODING, LONG, 207),
  1566 
  1567   /* Callback function for closing socket (instead of close(2)). The callback
  1568      should have type curl_closesocket_callback */
  1569   CINIT(CLOSESOCKETFUNCTION, FUNCTIONPOINT, 208),
  1570   CINIT(CLOSESOCKETDATA, OBJECTPOINT, 209),
  1571 
  1572   /* allow GSSAPI credential delegation */
  1573   CINIT(GSSAPI_DELEGATION, LONG, 210),
  1574 
  1575   /* Set the name servers to use for DNS resolution */
  1576   CINIT(DNS_SERVERS, STRINGPOINT, 211),
  1577 
  1578   /* Time-out accept operations (currently for FTP only) after this amount
  1579      of miliseconds. */
  1580   CINIT(ACCEPTTIMEOUT_MS, LONG, 212),
  1581 
  1582   /* Set TCP keepalive */
  1583   CINIT(TCP_KEEPALIVE, LONG, 213),
  1584 
  1585   /* non-universal keepalive knobs (Linux, AIX, HP-UX, more) */
  1586   CINIT(TCP_KEEPIDLE, LONG, 214),
  1587   CINIT(TCP_KEEPINTVL, LONG, 215),
  1588 
  1589   /* Enable/disable specific SSL features with a bitmask, see CURLSSLOPT_* */
  1590   CINIT(SSL_OPTIONS, LONG, 216),
  1591 
  1592   /* Set the SMTP auth originator */
  1593   CINIT(MAIL_AUTH, STRINGPOINT, 217),
  1594 
  1595   /* Enable/disable SASL initial response */
  1596   CINIT(SASL_IR, LONG, 218),
  1597 
  1598   /* Function that will be called instead of the internal progress display
  1599    * function. This function should be defined as the curl_xferinfo_callback
  1600    * prototype defines. (Deprecates CURLOPT_PROGRESSFUNCTION) */
  1601   CINIT(XFERINFOFUNCTION, FUNCTIONPOINT, 219),
  1602 
  1603   /* The XOAUTH2 bearer token */
  1604   CINIT(XOAUTH2_BEARER, STRINGPOINT, 220),
  1605 
  1606   /* Set the interface string to use as outgoing network
  1607    * interface for DNS requests.
  1608    * Only supported by the c-ares DNS backend */
  1609   CINIT(DNS_INTERFACE, STRINGPOINT, 221),
  1610 
  1611   /* Set the local IPv4 address to use for outgoing DNS requests.
  1612    * Only supported by the c-ares DNS backend */
  1613   CINIT(DNS_LOCAL_IP4, STRINGPOINT, 222),
  1614 
  1615   /* Set the local IPv4 address to use for outgoing DNS requests.
  1616    * Only supported by the c-ares DNS backend */
  1617   CINIT(DNS_LOCAL_IP6, STRINGPOINT, 223),
  1618 
  1619   /* Set authentication options directly */
  1620   CINIT(LOGIN_OPTIONS, STRINGPOINT, 224),
  1621 
  1622   /* Enable/disable TLS NPN extension (http2 over ssl might fail without) */
  1623   CINIT(SSL_ENABLE_NPN, LONG, 225),
  1624 
  1625   /* Enable/disable TLS ALPN extension (http2 over ssl might fail without) */
  1626   CINIT(SSL_ENABLE_ALPN, LONG, 226),
  1627 
  1628   /* Time to wait for a response to a HTTP request containing an
  1629    * Expect: 100-continue header before sending the data anyway. */
  1630   CINIT(EXPECT_100_TIMEOUT_MS, LONG, 227),
  1631 
  1632   /* This points to a linked list of headers used for proxy requests only,
  1633      struct curl_slist kind */
  1634   CINIT(PROXYHEADER, OBJECTPOINT, 228),
  1635 
  1636   /* Pass in a bitmask of "header options" */
  1637   CINIT(HEADEROPT, LONG, 229),
  1638 
  1639   /* The public key in DER form used to validate the peer public key
  1640      this option is used only if SSL_VERIFYPEER is true */
  1641   CINIT(PINNEDPUBLICKEY, STRINGPOINT, 230),
  1642 
  1643   /* Path to Unix domain socket */
  1644   CINIT(UNIX_SOCKET_PATH, STRINGPOINT, 231),
  1645 
  1646   /* Set if we should verify the certificate status. */
  1647   CINIT(SSL_VERIFYSTATUS, LONG, 232),
  1648 
  1649   /* Set if we should enable TLS false start. */
  1650   CINIT(SSL_FALSESTART, LONG, 233),
  1651 
  1652   /* Do not squash dot-dot sequences */
  1653   CINIT(PATH_AS_IS, LONG, 234),
  1654 
  1655   /* Proxy Service Name */
  1656   CINIT(PROXY_SERVICE_NAME, STRINGPOINT, 235),
  1657 
  1658   /* Service Name */
  1659   CINIT(SERVICE_NAME, STRINGPOINT, 236),
  1660 
  1661   /* Wait/don't wait for pipe/mutex to clarify */
  1662   CINIT(PIPEWAIT, LONG, 237),
  1663 
  1664   /* Set the protocol used when curl is given a URL without a protocol */
  1665   CINIT(DEFAULT_PROTOCOL, STRINGPOINT, 238),
  1666 
  1667   /* Set stream weight, 1 - 256 (default is 16) */
  1668   CINIT(STREAM_WEIGHT, LONG, 239),
  1669 
  1670   /* Set stream dependency on another CURL handle */
  1671   CINIT(STREAM_DEPENDS, OBJECTPOINT, 240),
  1672 
  1673   /* Set E-xclusive stream dependency on another CURL handle */
  1674   CINIT(STREAM_DEPENDS_E, OBJECTPOINT, 241),
  1675 
  1676   /* Do not send any tftp option requests to the server */
  1677   CINIT(TFTP_NO_OPTIONS, LONG, 242),
  1678 
  1679   CURLOPT_LASTENTRY /* the last unused */
  1680 } CURLoption;
  1681 
  1682 #ifndef CURL_NO_OLDIES /* define this to test if your app builds with all
  1683                           the obsolete stuff removed! */
  1684 
  1685 /* Backwards compatibility with older names */
  1686 /* These are scheduled to disappear by 2011 */
  1687 
  1688 /* This was added in version 7.19.1 */
  1689 #define CURLOPT_POST301 CURLOPT_POSTREDIR
  1690 
  1691 /* These are scheduled to disappear by 2009 */
  1692 
  1693 /* The following were added in 7.17.0 */
  1694 #define CURLOPT_SSLKEYPASSWD CURLOPT_KEYPASSWD
  1695 #define CURLOPT_FTPAPPEND CURLOPT_APPEND
  1696 #define CURLOPT_FTPLISTONLY CURLOPT_DIRLISTONLY
  1697 #define CURLOPT_FTP_SSL CURLOPT_USE_SSL
  1698 
  1699 /* The following were added earlier */
  1700 
  1701 #define CURLOPT_SSLCERTPASSWD CURLOPT_KEYPASSWD
  1702 #define CURLOPT_KRB4LEVEL CURLOPT_KRBLEVEL
  1703 
  1704 #else
  1705 /* This is set if CURL_NO_OLDIES is defined at compile-time */
  1706 #undef CURLOPT_DNS_USE_GLOBAL_CACHE /* soon obsolete */
  1707 #endif
  1708 
  1709 
  1710   /* Below here follows defines for the CURLOPT_IPRESOLVE option. If a host
  1711      name resolves addresses using more than one IP protocol version, this
  1712      option might be handy to force libcurl to use a specific IP version. */
  1713 #define CURL_IPRESOLVE_WHATEVER 0 /* default, resolves addresses to all IP
  1714                                      versions that your system allows */
  1715 #define CURL_IPRESOLVE_V4       1 /* resolve to IPv4 addresses */
  1716 #define CURL_IPRESOLVE_V6       2 /* resolve to IPv6 addresses */
  1717 
  1718   /* three convenient "aliases" that follow the name scheme better */
  1719 #define CURLOPT_RTSPHEADER CURLOPT_HTTPHEADER
  1720 
  1721   /* These enums are for use with the CURLOPT_HTTP_VERSION option. */
  1722 enum {
  1723   CURL_HTTP_VERSION_NONE, /* setting this means we don't care, and that we'd
  1724                              like the library to choose the best possible
  1725                              for us! */
  1726   CURL_HTTP_VERSION_1_0,  /* please use HTTP 1.0 in the request */
  1727   CURL_HTTP_VERSION_1_1,  /* please use HTTP 1.1 in the request */
  1728   CURL_HTTP_VERSION_2_0,  /* please use HTTP 2 in the request */
  1729   CURL_HTTP_VERSION_2TLS, /* use version 2 for HTTPS, version 1.1 for HTTP */
  1730 
  1731   CURL_HTTP_VERSION_LAST /* *ILLEGAL* http version */
  1732 };
  1733 
  1734 /* Convenience definition simple because the name of the version is HTTP/2 and
  1735    not 2.0. The 2_0 version of the enum name was set while the version was
  1736    still planned to be 2.0 and we stick to it for compatibility. */
  1737 #define CURL_HTTP_VERSION_2 CURL_HTTP_VERSION_2_0
  1738 
  1739 /*
  1740  * Public API enums for RTSP requests
  1741  */
  1742 enum {
  1743     CURL_RTSPREQ_NONE, /* first in list */
  1744     CURL_RTSPREQ_OPTIONS,
  1745     CURL_RTSPREQ_DESCRIBE,
  1746     CURL_RTSPREQ_ANNOUNCE,
  1747     CURL_RTSPREQ_SETUP,
  1748     CURL_RTSPREQ_PLAY,
  1749     CURL_RTSPREQ_PAUSE,
  1750     CURL_RTSPREQ_TEARDOWN,
  1751     CURL_RTSPREQ_GET_PARAMETER,
  1752     CURL_RTSPREQ_SET_PARAMETER,
  1753     CURL_RTSPREQ_RECORD,
  1754     CURL_RTSPREQ_RECEIVE,
  1755     CURL_RTSPREQ_LAST /* last in list */
  1756 };
  1757 
  1758   /* These enums are for use with the CURLOPT_NETRC option. */
  1759 enum CURL_NETRC_OPTION {
  1760   CURL_NETRC_IGNORED,     /* The .netrc will never be read.
  1761                            * This is the default. */
  1762   CURL_NETRC_OPTIONAL,    /* A user:password in the URL will be preferred
  1763                            * to one in the .netrc. */
  1764   CURL_NETRC_REQUIRED,    /* A user:password in the URL will be ignored.
  1765                            * Unless one is set programmatically, the .netrc
  1766                            * will be queried. */
  1767   CURL_NETRC_LAST
  1768 };
  1769 
  1770 enum {
  1771   CURL_SSLVERSION_DEFAULT,
  1772   CURL_SSLVERSION_TLSv1, /* TLS 1.x */
  1773   CURL_SSLVERSION_SSLv2,
  1774   CURL_SSLVERSION_SSLv3,
  1775   CURL_SSLVERSION_TLSv1_0,
  1776   CURL_SSLVERSION_TLSv1_1,
  1777   CURL_SSLVERSION_TLSv1_2,
  1778 
  1779   CURL_SSLVERSION_LAST /* never use, keep last */
  1780 };
  1781 
  1782 enum CURL_TLSAUTH {
  1783   CURL_TLSAUTH_NONE,
  1784   CURL_TLSAUTH_SRP,
  1785   CURL_TLSAUTH_LAST /* never use, keep last */
  1786 };
  1787 
  1788 /* symbols to use with CURLOPT_POSTREDIR.
  1789    CURL_REDIR_POST_301, CURL_REDIR_POST_302 and CURL_REDIR_POST_303
  1790    can be bitwise ORed so that CURL_REDIR_POST_301 | CURL_REDIR_POST_302
  1791    | CURL_REDIR_POST_303 == CURL_REDIR_POST_ALL */
  1792 
  1793 #define CURL_REDIR_GET_ALL  0
  1794 #define CURL_REDIR_POST_301 1
  1795 #define CURL_REDIR_POST_302 2
  1796 #define CURL_REDIR_POST_303 4
  1797 #define CURL_REDIR_POST_ALL \
  1798     (CURL_REDIR_POST_301|CURL_REDIR_POST_302|CURL_REDIR_POST_303)
  1799 
  1800 typedef enum {
  1801   CURL_TIMECOND_NONE,
  1802 
  1803   CURL_TIMECOND_IFMODSINCE,
  1804   CURL_TIMECOND_IFUNMODSINCE,
  1805   CURL_TIMECOND_LASTMOD,
  1806 
  1807   CURL_TIMECOND_LAST
  1808 } curl_TimeCond;
  1809 
  1810 
  1811 /* curl_strequal() and curl_strnequal() are subject for removal in a future
  1812    libcurl, see lib/README.curlx for details */
  1813 CURL_EXTERN int (curl_strequal)(const char *s1, const char *s2);
  1814 CURL_EXTERN int (curl_strnequal)(const char *s1, const char *s2, size_t n);
  1815 
  1816 /* name is uppercase CURLFORM_<name> */
  1817 #ifdef CFINIT
  1818 #undef CFINIT
  1819 #endif
  1820 
  1821 #ifdef CURL_ISOCPP
  1822 #define CFINIT(name) CURLFORM_ ## name
  1823 #else
  1824 /* The macro "##" is ISO C, we assume pre-ISO C doesn't support it. */
  1825 #define CFINIT(name) CURLFORM_/**/name
  1826 #endif
  1827 
  1828 typedef enum {
  1829   CFINIT(NOTHING),        /********* the first one is unused ************/
  1830 
  1831   /*  */
  1832   CFINIT(COPYNAME),
  1833   CFINIT(PTRNAME),
  1834   CFINIT(NAMELENGTH),
  1835   CFINIT(COPYCONTENTS),
  1836   CFINIT(PTRCONTENTS),
  1837   CFINIT(CONTENTSLENGTH),
  1838   CFINIT(FILECONTENT),
  1839   CFINIT(ARRAY),
  1840   CFINIT(OBSOLETE),
  1841   CFINIT(FILE),
  1842 
  1843   CFINIT(BUFFER),
  1844   CFINIT(BUFFERPTR),
  1845   CFINIT(BUFFERLENGTH),
  1846 
  1847   CFINIT(CONTENTTYPE),
  1848   CFINIT(CONTENTHEADER),
  1849   CFINIT(FILENAME),
  1850   CFINIT(END),
  1851   CFINIT(OBSOLETE2),
  1852 
  1853   CFINIT(STREAM),
  1854   CFINIT(CONTENTLEN), /* added in 7.46.0, provide a curl_off_t length */
  1855 
  1856   CURLFORM_LASTENTRY /* the last unused */
  1857 } CURLformoption;
  1858 
  1859 #undef CFINIT /* done */
  1860 
  1861 /* structure to be used as parameter for CURLFORM_ARRAY */
  1862 struct curl_forms {
  1863   CURLformoption option;
  1864   const char     *value;
  1865 };
  1866 
  1867 /* use this for multipart formpost building */
  1868 /* Returns code for curl_formadd()
  1869  *
  1870  * Returns:
  1871  * CURL_FORMADD_OK             on success
  1872  * CURL_FORMADD_MEMORY         if the FormInfo allocation fails
  1873  * CURL_FORMADD_OPTION_TWICE   if one option is given twice for one Form
  1874  * CURL_FORMADD_NULL           if a null pointer was given for a char
  1875  * CURL_FORMADD_MEMORY         if the allocation of a FormInfo struct failed
  1876  * CURL_FORMADD_UNKNOWN_OPTION if an unknown option was used
  1877  * CURL_FORMADD_INCOMPLETE     if the some FormInfo is not complete (or error)
  1878  * CURL_FORMADD_MEMORY         if a curl_httppost struct cannot be allocated
  1879  * CURL_FORMADD_MEMORY         if some allocation for string copying failed.
  1880  * CURL_FORMADD_ILLEGAL_ARRAY  if an illegal option is used in an array
  1881  *
  1882  ***************************************************************************/
  1883 typedef enum {
  1884   CURL_FORMADD_OK, /* first, no error */
  1885 
  1886   CURL_FORMADD_MEMORY,
  1887   CURL_FORMADD_OPTION_TWICE,
  1888   CURL_FORMADD_NULL,
  1889   CURL_FORMADD_UNKNOWN_OPTION,
  1890   CURL_FORMADD_INCOMPLETE,
  1891   CURL_FORMADD_ILLEGAL_ARRAY,
  1892   CURL_FORMADD_DISABLED, /* libcurl was built with this disabled */
  1893 
  1894   CURL_FORMADD_LAST /* last */
  1895 } CURLFORMcode;
  1896 
  1897 /*
  1898  * NAME curl_formadd()
  1899  *
  1900  * DESCRIPTION
  1901  *
  1902  * Pretty advanced function for building multi-part formposts. Each invoke
  1903  * adds one part that together construct a full post. Then use
  1904  * CURLOPT_HTTPPOST to send it off to libcurl.
  1905  */
  1906 CURL_EXTERN CURLFORMcode curl_formadd(struct curl_httppost **httppost,
  1907                                       struct curl_httppost **last_post,
  1908                                       ...);
  1909 
  1910 /*
  1911  * callback function for curl_formget()
  1912  * The void *arg pointer will be the one passed as second argument to
  1913  *   curl_formget().
  1914  * The character buffer passed to it must not be freed.
  1915  * Should return the buffer length passed to it as the argument "len" on
  1916  *   success.
  1917  */
  1918 typedef size_t (*curl_formget_callback)(void *arg, const char *buf,
  1919                                         size_t len);
  1920 
  1921 /*
  1922  * NAME curl_formget()
  1923  *
  1924  * DESCRIPTION
  1925  *
  1926  * Serialize a curl_httppost struct built with curl_formadd().
  1927  * Accepts a void pointer as second argument which will be passed to
  1928  * the curl_formget_callback function.
  1929  * Returns 0 on success.
  1930  */
  1931 CURL_EXTERN int curl_formget(struct curl_httppost *form, void *arg,
  1932                              curl_formget_callback append);
  1933 /*
  1934  * NAME curl_formfree()
  1935  *
  1936  * DESCRIPTION
  1937  *
  1938  * Free a multipart formpost previously built with curl_formadd().
  1939  */
  1940 CURL_EXTERN void curl_formfree(struct curl_httppost *form);
  1941 
  1942 /*
  1943  * NAME curl_getenv()
  1944  *
  1945  * DESCRIPTION
  1946  *
  1947  * Returns a malloc()'ed string that MUST be curl_free()ed after usage is
  1948  * complete. DEPRECATED - see lib/README.curlx
  1949  */
  1950 CURL_EXTERN char *curl_getenv(const char *variable);
  1951 
  1952 /*
  1953  * NAME curl_version()
  1954  *
  1955  * DESCRIPTION
  1956  *
  1957  * Returns a static ascii string of the libcurl version.
  1958  */
  1959 CURL_EXTERN char *curl_version(void);
  1960 
  1961 /*
  1962  * NAME curl_easy_escape()
  1963  *
  1964  * DESCRIPTION
  1965  *
  1966  * Escapes URL strings (converts all letters consider illegal in URLs to their
  1967  * %XX versions). This function returns a new allocated string or NULL if an
  1968  * error occurred.
  1969  */
  1970 CURL_EXTERN char *curl_easy_escape(CURL *handle,
  1971                                    const char *string,
  1972                                    int length);
  1973 
  1974 /* the previous version: */
  1975 CURL_EXTERN char *curl_escape(const char *string,
  1976                               int length);
  1977 
  1978 
  1979 /*
  1980  * NAME curl_easy_unescape()
  1981  *
  1982  * DESCRIPTION
  1983  *
  1984  * Unescapes URL encoding in strings (converts all %XX codes to their 8bit
  1985  * versions). This function returns a new allocated string or NULL if an error
  1986  * occurred.
  1987  * Conversion Note: On non-ASCII platforms the ASCII %XX codes are
  1988  * converted into the host encoding.
  1989  */
  1990 CURL_EXTERN char *curl_easy_unescape(CURL *handle,
  1991                                      const char *string,
  1992                                      int length,
  1993                                      int *outlength);
  1994 
  1995 /* the previous version */
  1996 CURL_EXTERN char *curl_unescape(const char *string,
  1997                                 int length);
  1998 
  1999 /*
  2000  * NAME curl_free()
  2001  *
  2002  * DESCRIPTION
  2003  *
  2004  * Provided for de-allocation in the same translation unit that did the
  2005  * allocation. Added in libcurl 7.10
  2006  */
  2007 CURL_EXTERN void curl_free(void *p);
  2008 
  2009 /*
  2010  * NAME curl_global_init()
  2011  *
  2012  * DESCRIPTION
  2013  *
  2014  * curl_global_init() should be invoked exactly once for each application that
  2015  * uses libcurl and before any call of other libcurl functions.
  2016  *
  2017  * This function is not thread-safe!
  2018  */
  2019 CURL_EXTERN CURLcode curl_global_init(long flags);
  2020 
  2021 /*
  2022  * NAME curl_global_init_mem()
  2023  *
  2024  * DESCRIPTION
  2025  *
  2026  * curl_global_init() or curl_global_init_mem() should be invoked exactly once
  2027  * for each application that uses libcurl.  This function can be used to
  2028  * initialize libcurl and set user defined memory management callback
  2029  * functions.  Users can implement memory management routines to check for
  2030  * memory leaks, check for mis-use of the curl library etc.  User registered
  2031  * callback routines with be invoked by this library instead of the system
  2032  * memory management routines like malloc, free etc.
  2033  */
  2034 CURL_EXTERN CURLcode curl_global_init_mem(long flags,
  2035                                           curl_malloc_callback m,
  2036                                           curl_free_callback f,
  2037                                           curl_realloc_callback r,
  2038                                           curl_strdup_callback s,
  2039                                           curl_calloc_callback c);
  2040 
  2041 /*
  2042  * NAME curl_global_cleanup()
  2043  *
  2044  * DESCRIPTION
  2045  *
  2046  * curl_global_cleanup() should be invoked exactly once for each application
  2047  * that uses libcurl
  2048  */
  2049 CURL_EXTERN void curl_global_cleanup(void);
  2050 
  2051 /* linked-list structure for the CURLOPT_QUOTE option (and other) */
  2052 struct curl_slist {
  2053   char *data;
  2054   struct curl_slist *next;
  2055 };
  2056 
  2057 /*
  2058  * NAME curl_slist_append()
  2059  *
  2060  * DESCRIPTION
  2061  *
  2062  * Appends a string to a linked list. If no list exists, it will be created
  2063  * first. Returns the new list, after appending.
  2064  */
  2065 CURL_EXTERN struct curl_slist *curl_slist_append(struct curl_slist *,
  2066                                                  const char *);
  2067 
  2068 /*
  2069  * NAME curl_slist_free_all()
  2070  *
  2071  * DESCRIPTION
  2072  *
  2073  * free a previously built curl_slist.
  2074  */
  2075 CURL_EXTERN void curl_slist_free_all(struct curl_slist *);
  2076 
  2077 /*
  2078  * NAME curl_getdate()
  2079  *
  2080  * DESCRIPTION
  2081  *
  2082  * Returns the time, in seconds since 1 Jan 1970 of the time string given in
  2083  * the first argument. The time argument in the second parameter is unused
  2084  * and should be set to NULL.
  2085  */
  2086 CURL_EXTERN time_t curl_getdate(const char *p, const time_t *unused);
  2087 
  2088 /* info about the certificate chain, only for OpenSSL builds. Asked
  2089    for with CURLOPT_CERTINFO / CURLINFO_CERTINFO */
  2090 struct curl_certinfo {
  2091   int num_of_certs;             /* number of certificates with information */
  2092   struct curl_slist **certinfo; /* for each index in this array, there's a
  2093                                    linked list with textual information in the
  2094                                    format "name: value" */
  2095 };
  2096 
  2097 /* enum for the different supported SSL backends */
  2098 typedef enum {
  2099   CURLSSLBACKEND_NONE = 0,
  2100   CURLSSLBACKEND_OPENSSL = 1,
  2101   CURLSSLBACKEND_GNUTLS = 2,
  2102   CURLSSLBACKEND_NSS = 3,
  2103   CURLSSLBACKEND_OBSOLETE4 = 4,  /* Was QSOSSL. */
  2104   CURLSSLBACKEND_GSKIT = 5,
  2105   CURLSSLBACKEND_POLARSSL = 6,
  2106   CURLSSLBACKEND_CYASSL = 7,
  2107   CURLSSLBACKEND_SCHANNEL = 8,
  2108   CURLSSLBACKEND_DARWINSSL = 9,
  2109   CURLSSLBACKEND_AXTLS = 10,
  2110   CURLSSLBACKEND_MBEDTLS = 11
  2111 } curl_sslbackend;
  2112 
  2113 /* Information about the SSL library used and the respective internal SSL
  2114    handle, which can be used to obtain further information regarding the
  2115    connection. Asked for with CURLINFO_TLS_SSL_PTR or CURLINFO_TLS_SESSION. */
  2116 struct curl_tlssessioninfo {
  2117   curl_sslbackend backend;
  2118   void *internals;
  2119 };
  2120 
  2121 #define CURLINFO_STRING   0x100000
  2122 #define CURLINFO_LONG     0x200000
  2123 #define CURLINFO_DOUBLE   0x300000
  2124 #define CURLINFO_SLIST    0x400000
  2125 #define CURLINFO_SOCKET   0x500000
  2126 #define CURLINFO_MASK     0x0fffff
  2127 #define CURLINFO_TYPEMASK 0xf00000
  2128 
  2129 typedef enum {
  2130   CURLINFO_NONE, /* first, never use this */
  2131   CURLINFO_EFFECTIVE_URL    = CURLINFO_STRING + 1,
  2132   CURLINFO_RESPONSE_CODE    = CURLINFO_LONG   + 2,
  2133   CURLINFO_TOTAL_TIME       = CURLINFO_DOUBLE + 3,
  2134   CURLINFO_NAMELOOKUP_TIME  = CURLINFO_DOUBLE + 4,
  2135   CURLINFO_CONNECT_TIME     = CURLINFO_DOUBLE + 5,
  2136   CURLINFO_PRETRANSFER_TIME = CURLINFO_DOUBLE + 6,
  2137   CURLINFO_SIZE_UPLOAD      = CURLINFO_DOUBLE + 7,
  2138   CURLINFO_SIZE_DOWNLOAD    = CURLINFO_DOUBLE + 8,
  2139   CURLINFO_SPEED_DOWNLOAD   = CURLINFO_DOUBLE + 9,
  2140   CURLINFO_SPEED_UPLOAD     = CURLINFO_DOUBLE + 10,
  2141   CURLINFO_HEADER_SIZE      = CURLINFO_LONG   + 11,
  2142   CURLINFO_REQUEST_SIZE     = CURLINFO_LONG   + 12,
  2143   CURLINFO_SSL_VERIFYRESULT = CURLINFO_LONG   + 13,
  2144   CURLINFO_FILETIME         = CURLINFO_LONG   + 14,
  2145   CURLINFO_CONTENT_LENGTH_DOWNLOAD   = CURLINFO_DOUBLE + 15,
  2146   CURLINFO_CONTENT_LENGTH_UPLOAD     = CURLINFO_DOUBLE + 16,
  2147   CURLINFO_STARTTRANSFER_TIME = CURLINFO_DOUBLE + 17,
  2148   CURLINFO_CONTENT_TYPE     = CURLINFO_STRING + 18,
  2149   CURLINFO_REDIRECT_TIME    = CURLINFO_DOUBLE + 19,
  2150   CURLINFO_REDIRECT_COUNT   = CURLINFO_LONG   + 20,
  2151   CURLINFO_PRIVATE          = CURLINFO_STRING + 21,
  2152   CURLINFO_HTTP_CONNECTCODE = CURLINFO_LONG   + 22,
  2153   CURLINFO_HTTPAUTH_AVAIL   = CURLINFO_LONG   + 23,
  2154   CURLINFO_PROXYAUTH_AVAIL  = CURLINFO_LONG   + 24,
  2155   CURLINFO_OS_ERRNO         = CURLINFO_LONG   + 25,
  2156   CURLINFO_NUM_CONNECTS     = CURLINFO_LONG   + 26,
  2157   CURLINFO_SSL_ENGINES      = CURLINFO_SLIST  + 27,
  2158   CURLINFO_COOKIELIST       = CURLINFO_SLIST  + 28,
  2159   CURLINFO_LASTSOCKET       = CURLINFO_LONG   + 29,
  2160   CURLINFO_FTP_ENTRY_PATH   = CURLINFO_STRING + 30,
  2161   CURLINFO_REDIRECT_URL     = CURLINFO_STRING + 31,
  2162   CURLINFO_PRIMARY_IP       = CURLINFO_STRING + 32,
  2163   CURLINFO_APPCONNECT_TIME  = CURLINFO_DOUBLE + 33,
  2164   CURLINFO_CERTINFO         = CURLINFO_SLIST  + 34,
  2165   CURLINFO_CONDITION_UNMET  = CURLINFO_LONG   + 35,
  2166   CURLINFO_RTSP_SESSION_ID  = CURLINFO_STRING + 36,
  2167   CURLINFO_RTSP_CLIENT_CSEQ = CURLINFO_LONG   + 37,
  2168   CURLINFO_RTSP_SERVER_CSEQ = CURLINFO_LONG   + 38,
  2169   CURLINFO_RTSP_CSEQ_RECV   = CURLINFO_LONG   + 39,
  2170   CURLINFO_PRIMARY_PORT     = CURLINFO_LONG   + 40,
  2171   CURLINFO_LOCAL_IP         = CURLINFO_STRING + 41,
  2172   CURLINFO_LOCAL_PORT       = CURLINFO_LONG   + 42,
  2173   CURLINFO_TLS_SESSION      = CURLINFO_SLIST  + 43,
  2174   CURLINFO_ACTIVESOCKET     = CURLINFO_SOCKET + 44,
  2175   CURLINFO_TLS_SSL_PTR      = CURLINFO_SLIST  + 45,
  2176   /* Fill in new entries below here! */
  2177 
  2178   CURLINFO_LASTONE          = 45
  2179 } CURLINFO;
  2180 
  2181 /* CURLINFO_RESPONSE_CODE is the new name for the option previously known as
  2182    CURLINFO_HTTP_CODE */
  2183 #define CURLINFO_HTTP_CODE CURLINFO_RESPONSE_CODE
  2184 
  2185 typedef enum {
  2186   CURLCLOSEPOLICY_NONE, /* first, never use this */
  2187 
  2188   CURLCLOSEPOLICY_OLDEST,
  2189   CURLCLOSEPOLICY_LEAST_RECENTLY_USED,
  2190   CURLCLOSEPOLICY_LEAST_TRAFFIC,
  2191   CURLCLOSEPOLICY_SLOWEST,
  2192   CURLCLOSEPOLICY_CALLBACK,
  2193 
  2194   CURLCLOSEPOLICY_LAST /* last, never use this */
  2195 } curl_closepolicy;
  2196 
  2197 #define CURL_GLOBAL_SSL (1<<0)
  2198 #define CURL_GLOBAL_WIN32 (1<<1)
  2199 #define CURL_GLOBAL_ALL (CURL_GLOBAL_SSL|CURL_GLOBAL_WIN32)
  2200 #define CURL_GLOBAL_NOTHING 0
  2201 #define CURL_GLOBAL_DEFAULT CURL_GLOBAL_ALL
  2202 #define CURL_GLOBAL_ACK_EINTR (1<<2)
  2203 
  2204 
  2205 /*****************************************************************************
  2206  * Setup defines, protos etc for the sharing stuff.
  2207  */
  2208 
  2209 /* Different data locks for a single share */
  2210 typedef enum {
  2211   CURL_LOCK_DATA_NONE = 0,
  2212   /*  CURL_LOCK_DATA_SHARE is used internally to say that
  2213    *  the locking is just made to change the internal state of the share
  2214    *  itself.
  2215    */
  2216   CURL_LOCK_DATA_SHARE,
  2217   CURL_LOCK_DATA_COOKIE,
  2218   CURL_LOCK_DATA_DNS,
  2219   CURL_LOCK_DATA_SSL_SESSION,
  2220   CURL_LOCK_DATA_CONNECT,
  2221   CURL_LOCK_DATA_LAST
  2222 } curl_lock_data;
  2223 
  2224 /* Different lock access types */
  2225 typedef enum {
  2226   CURL_LOCK_ACCESS_NONE = 0,   /* unspecified action */
  2227   CURL_LOCK_ACCESS_SHARED = 1, /* for read perhaps */
  2228   CURL_LOCK_ACCESS_SINGLE = 2, /* for write perhaps */
  2229   CURL_LOCK_ACCESS_LAST        /* never use */
  2230 } curl_lock_access;
  2231 
  2232 typedef void (*curl_lock_function)(CURL *handle,
  2233                                    curl_lock_data data,
  2234                                    curl_lock_access locktype,
  2235                                    void *userptr);
  2236 typedef void (*curl_unlock_function)(CURL *handle,
  2237                                      curl_lock_data data,
  2238                                      void *userptr);
  2239 
  2240 typedef void CURLSH;
  2241 
  2242 typedef enum {
  2243   CURLSHE_OK,  /* all is fine */
  2244   CURLSHE_BAD_OPTION, /* 1 */
  2245   CURLSHE_IN_USE,     /* 2 */
  2246   CURLSHE_INVALID,    /* 3 */
  2247   CURLSHE_NOMEM,      /* 4 out of memory */
  2248   CURLSHE_NOT_BUILT_IN, /* 5 feature not present in lib */
  2249   CURLSHE_LAST        /* never use */
  2250 } CURLSHcode;
  2251 
  2252 typedef enum {
  2253   CURLSHOPT_NONE,  /* don't use */
  2254   CURLSHOPT_SHARE,   /* specify a data type to share */
  2255   CURLSHOPT_UNSHARE, /* specify which data type to stop sharing */
  2256   CURLSHOPT_LOCKFUNC,   /* pass in a 'curl_lock_function' pointer */
  2257   CURLSHOPT_UNLOCKFUNC, /* pass in a 'curl_unlock_function' pointer */
  2258   CURLSHOPT_USERDATA,   /* pass in a user data pointer used in the lock/unlock
  2259                            callback functions */
  2260   CURLSHOPT_LAST  /* never use */
  2261 } CURLSHoption;
  2262 
  2263 CURL_EXTERN CURLSH *curl_share_init(void);
  2264 CURL_EXTERN CURLSHcode curl_share_setopt(CURLSH *, CURLSHoption option, ...);
  2265 CURL_EXTERN CURLSHcode curl_share_cleanup(CURLSH *);
  2266 
  2267 /****************************************************************************
  2268  * Structures for querying information about the curl library at runtime.
  2269  */
  2270 
  2271 typedef enum {
  2272   CURLVERSION_FIRST,
  2273   CURLVERSION_SECOND,
  2274   CURLVERSION_THIRD,
  2275   CURLVERSION_FOURTH,
  2276   CURLVERSION_LAST /* never actually use this */
  2277 } CURLversion;
  2278 
  2279 /* The 'CURLVERSION_NOW' is the symbolic name meant to be used by
  2280    basically all programs ever that want to get version information. It is
  2281    meant to be a built-in version number for what kind of struct the caller
  2282    expects. If the struct ever changes, we redefine the NOW to another enum
  2283    from above. */
  2284 #define CURLVERSION_NOW CURLVERSION_FOURTH
  2285 
  2286 typedef struct {
  2287   CURLversion age;          /* age of the returned struct */
  2288   const char *version;      /* LIBCURL_VERSION */
  2289   unsigned int version_num; /* LIBCURL_VERSION_NUM */
  2290   const char *host;         /* OS/host/cpu/machine when configured */
  2291   int features;             /* bitmask, see defines below */
  2292   const char *ssl_version;  /* human readable string */
  2293   long ssl_version_num;     /* not used anymore, always 0 */
  2294   const char *libz_version; /* human readable string */
  2295   /* protocols is terminated by an entry with a NULL protoname */
  2296   const char * const *protocols;
  2297 
  2298   /* The fields below this were added in CURLVERSION_SECOND */
  2299   const char *ares;
  2300   int ares_num;
  2301 
  2302   /* This field was added in CURLVERSION_THIRD */
  2303   const char *libidn;
  2304 
  2305   /* These field were added in CURLVERSION_FOURTH */
  2306 
  2307   /* Same as '_libiconv_version' if built with HAVE_ICONV */
  2308   int iconv_ver_num;
  2309 
  2310   const char *libssh_version; /* human readable string */
  2311 
  2312 } curl_version_info_data;
  2313 
  2314 #define CURL_VERSION_IPV6         (1<<0)  /* IPv6-enabled */
  2315 #define CURL_VERSION_KERBEROS4    (1<<1)  /* Kerberos V4 auth is supported
  2316                                              (deprecated) */
  2317 #define CURL_VERSION_SSL          (1<<2)  /* SSL options are present */
  2318 #define CURL_VERSION_LIBZ         (1<<3)  /* libz features are present */
  2319 #define CURL_VERSION_NTLM         (1<<4)  /* NTLM auth is supported */
  2320 #define CURL_VERSION_GSSNEGOTIATE (1<<5)  /* Negotiate auth is supported
  2321                                              (deprecated) */
  2322 #define CURL_VERSION_DEBUG        (1<<6)  /* Built with debug capabilities */
  2323 #define CURL_VERSION_ASYNCHDNS    (1<<7)  /* Asynchronous DNS resolves */
  2324 #define CURL_VERSION_SPNEGO       (1<<8)  /* SPNEGO auth is supported */
  2325 #define CURL_VERSION_LARGEFILE    (1<<9)  /* Supports files larger than 2GB */
  2326 #define CURL_VERSION_IDN          (1<<10) /* Internationized Domain Names are
  2327                                              supported */
  2328 #define CURL_VERSION_SSPI         (1<<11) /* Built against Windows SSPI */
  2329 #define CURL_VERSION_CONV         (1<<12) /* Character conversions supported */
  2330 #define CURL_VERSION_CURLDEBUG    (1<<13) /* Debug memory tracking supported */
  2331 #define CURL_VERSION_TLSAUTH_SRP  (1<<14) /* TLS-SRP auth is supported */
  2332 #define CURL_VERSION_NTLM_WB      (1<<15) /* NTLM delegation to winbind helper
  2333                                              is suported */
  2334 #define CURL_VERSION_HTTP2        (1<<16) /* HTTP2 support built-in */
  2335 #define CURL_VERSION_GSSAPI       (1<<17) /* Built against a GSS-API library */
  2336 #define CURL_VERSION_KERBEROS5    (1<<18) /* Kerberos V5 auth is supported */
  2337 #define CURL_VERSION_UNIX_SOCKETS (1<<19) /* Unix domain sockets support */
  2338 #define CURL_VERSION_PSL          (1<<20) /* Mozilla's Public Suffix List, used
  2339                                              for cookie domain verification */
  2340 
  2341  /*
  2342  * NAME curl_version_info()
  2343  *
  2344  * DESCRIPTION
  2345  *
  2346  * This function returns a pointer to a static copy of the version info
  2347  * struct. See above.
  2348  */
  2349 CURL_EXTERN curl_version_info_data *curl_version_info(CURLversion);
  2350 
  2351 /*
  2352  * NAME curl_easy_strerror()
  2353  *
  2354  * DESCRIPTION
  2355  *
  2356  * The curl_easy_strerror function may be used to turn a CURLcode value
  2357  * into the equivalent human readable error string.  This is useful
  2358  * for printing meaningful error messages.
  2359  */
  2360 CURL_EXTERN const char *curl_easy_strerror(CURLcode);
  2361 
  2362 /*
  2363  * NAME curl_share_strerror()
  2364  *
  2365  * DESCRIPTION
  2366  *
  2367  * The curl_share_strerror function may be used to turn a CURLSHcode value
  2368  * into the equivalent human readable error string.  This is useful
  2369  * for printing meaningful error messages.
  2370  */
  2371 CURL_EXTERN const char *curl_share_strerror(CURLSHcode);
  2372 
  2373 /*
  2374  * NAME curl_easy_pause()
  2375  *
  2376  * DESCRIPTION
  2377  *
  2378  * The curl_easy_pause function pauses or unpauses transfers. Select the new
  2379  * state by setting the bitmask, use the convenience defines below.
  2380  *
  2381  */
  2382 CURL_EXTERN CURLcode curl_easy_pause(CURL *handle, int bitmask);
  2383 
  2384 #define CURLPAUSE_RECV      (1<<0)
  2385 #define CURLPAUSE_RECV_CONT (0)
  2386 
  2387 #define CURLPAUSE_SEND      (1<<2)
  2388 #define CURLPAUSE_SEND_CONT (0)
  2389 
  2390 #define CURLPAUSE_ALL       (CURLPAUSE_RECV|CURLPAUSE_SEND)
  2391 #define CURLPAUSE_CONT      (CURLPAUSE_RECV_CONT|CURLPAUSE_SEND_CONT)
  2392 
  2393 #ifdef  __cplusplus
  2394 }
  2395 #endif
  2396 
  2397 /* unfortunately, the easy.h and multi.h include files need options and info
  2398   stuff before they can be included! */
  2399 #include "easy.h" /* nothing in curl is fun without the easy stuff */
  2400 #include "multi.h"
  2401 
  2402 /* the typechecker doesn't work in C++ (yet) */
  2403 #if defined(__GNUC__) && defined(__GNUC_MINOR__) && \
  2404     ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)) && \
  2405     !defined(__cplusplus) && !defined(CURL_DISABLE_TYPECHECK)
  2406 #include "typecheck-gcc.h"
  2407 #else
  2408 #if defined(__STDC__) && (__STDC__ >= 1)
  2409 /* This preprocessor magic that replaces a call with the exact same call is
  2410    only done to make sure application authors pass exactly three arguments
  2411    to these functions. */
  2412 #define curl_easy_setopt(handle,opt,param) curl_easy_setopt(handle,opt,param)
  2413 #define curl_easy_getinfo(handle,info,arg) curl_easy_getinfo(handle,info,arg)
  2414 #define curl_share_setopt(share,opt,param) curl_share_setopt(share,opt,param)
  2415 #define curl_multi_setopt(handle,opt,param) curl_multi_setopt(handle,opt,param)
  2416 #endif /* __STDC__ >= 1 */
  2417 #endif /* gcc >= 4.3 && !__cplusplus */
  2418 
  2419 #endif /* __CURL_CURL_H */